125153515340 has 48 divisors (see below), whose sum is σ = 310725979200. Its totient is φ = 41430127872.

The previous prime is 125153515339. The next prime is 125153515349. The reversal of 125153515340 is 43515351521.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 125153515340.

It is not an unprimeable number, because it can be changed into a prime (125153515349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15408935 + ... + 15417054.

It is an arithmetic number, because the mean of its divisors is an integer number (6473457900).

Almost surely, 2^125153515340 is an apocalyptic number.

125153515340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125153515340 is an abundant number, since it is smaller than the sum of its proper divisors (185572463860).

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

125153515340 is a wasteful number, since it uses less digits than its factorization.

125153515340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30826034 (or 30826032 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 125153515340 its reverse (43515351521), we get a palindrome (168668866861).

The spelling of 125153515340 in words is "one hundred twenty-five billion, one hundred fifty-three million, five hundred fifteen thousand, three hundred forty".