125613155 has 4 divisors (see below), whose sum is σ = 150735792. Its totient is φ = 100490520.

The previous prime is 125613139. The next prime is 125613197. The reversal of 125613155 is 551316521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125613155 - 2⁴ = 125613139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12561311 + ... + 12561320.

It is an arithmetic number, because the mean of its divisors is an integer number (37683948).

Almost surely, 2^125613155 is an apocalyptic number.

125613155 is a deficient number, since it is larger than the sum of its proper divisors (25122637).

125613155 is an equidigital number, since it uses as much as digits as its factorization.

125613155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25122636.

The product of its digits is 4500, while the sum is 29.

The square root of 125613155 is about 11207.7274681355. The cubic root of 125613155 is about 500.8162068876.

Adding to 125613155 its reverse (551316521), we get a palindrome (676929676).

The spelling of 125613155 in words is "one hundred twenty-five million, six hundred thirteen thousand, one hundred fifty-five".