15125297145 has 64 divisors (see below), whose sum is σ = 29404975104. Its totient is φ = 6488951040.

The previous prime is 15125297041. The next prime is 15125297147. The reversal of 15125297145 is 54179252151.

It is not a de Polignac number, because 15125297145 - 2⁸ = 15125296889 is a prime.

It is a super-2 number, since 2×15125297145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15125297097 and 15125297106.

It is not an unprimeable number, because it can be changed into a prime (15125297147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68910 + ... + 187080.

It is an arithmetic number, because the mean of its divisors is an integer number (459452736).

Almost surely, 2^15125297145 is an apocalyptic number.

15125297145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15125297145 is a deficient number, since it is larger than the sum of its proper divisors (14279677959).

15125297145 is a wasteful number, since it uses less digits than its factorization.

15125297145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118262.

The product of its digits is 126000, while the sum is 42.

The spelling of 15125297145 in words is "fifteen billion, one hundred twenty-five million, two hundred ninety-seven thousand, one hundred forty-five".