12540150 has 96 divisors (see below), whose sum is σ = 39521280. Its totient is φ = 2864160.

The previous prime is 12540149. The next prime is 12540167. The reversal of 12540150 is 5104521.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8787 + ... + 10113.

It is an arithmetic number, because the mean of its divisors is an integer number (411680).

Almost surely, 2^12540150 is an apocalyptic number.

12540150 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 12540150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19760640).

12540150 is an abundant number, since it is smaller than the sum of its proper divisors (26981130).

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

12540150 is a wasteful number, since it uses less digits than its factorization.

12540150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12540150 is about 3541.2074212054. The cubic root of 12540150 is about 232.3276558376.

Adding to 12540150 its reverse (5104521), we get a palindrome (17644671).

It can be divided in two parts, 12 and 540150, that multiplied together give a triangular number (6481800 = T₃₆₀₀).

The spelling of 12540150 in words is "twelve million, five hundred forty thousand, one hundred fifty".