3125138306155 has 8 divisors (see below), whose sum is σ = 3750209745552. Its totient is φ = 2500081459488.

The previous prime is 3125138306141. The next prime is 3125138306179. The reversal of 3125138306155 is 5516038315213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3125138306155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3171369 + ... + 4038298.

It is an arithmetic number, because the mean of its divisors is an integer number (468776218194).

Almost surely, 2^{3125138306155} is an apocalyptic number.

3125138306155 is a deficient number, since it is larger than the sum of its proper divisors (625071439397).

3125138306155 is an equidigital number, since it uses as much as digits as its factorization.

3125138306155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296365.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 3125138306155 in words is "three trillion, one hundred twenty-five billion, one hundred thirty-eight million, three hundred six thousand, one hundred fifty-five".