125021070 has 48 divisors (see below), whose sum is σ = 337100400. Its totient is φ = 33338304.

The previous prime is 125021063. The next prime is 125021137. The reversal of 125021070 is 70120521.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23295 + ... + 28154.

It is an arithmetic number, because the mean of its divisors is an integer number (7022925).

Almost surely, 2^125021070 is an apocalyptic number.

125021070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125021070 is an abundant number, since it is smaller than the sum of its proper divisors (212079330).

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

125021070 is an equidigital number, since it uses as much as digits as its factorization.

125021070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51471 (or 51459 counting only the distinct ones).

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

The square root of 125021070 is about 11181.2821268404. The cubic root of 125021070 is about 500.0280917550.

Adding to 125021070 its reverse (70120521), we get a palindrome (195141591).

The spelling of 125021070 in words is "one hundred twenty-five million, twenty-one thousand, seventy".