12512070 has 96 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 3149280.

The previous prime is 12512063. The next prime is 12512077. The reversal of 12512070 is 7021521.

It is an interprime number because it is at equal distance from previous prime (12512063) and next prime (12512077).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46035 + ... + 46305.

It is an arithmetic number, because the mean of its divisors is an integer number (371280).

Almost surely, 2^12512070 is an apocalyptic number.

12512070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12512070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17821440).

12512070 is an abundant number, since it is smaller than the sum of its proper divisors (23130810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12512070 is a wasteful number, since it uses less digits than its factorization.

12512070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12512070 is about 3537.2404498422. The cubic root of 12512070 is about 232.1541162868.

Adding to 12512070 its reverse (7021521), we get a palindrome (19533591).

It can be divided in two parts, 1251 and 2070, that added together give a triangular number (3321 = T₈₁).

The spelling of 12512070 in words is "twelve million, five hundred twelve thousand, seventy".