125113611 has 12 divisors (see below), whose sum is σ = 194053992. Its totient is φ = 71493408.

The previous prime is 125113567. The next prime is 125113621. The reversal of 125113611 is 116311521.

It is a happy number.

It is not a de Polignac number, because 125113611 - 2¹¹ = 125111563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (125113621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425410 + ... + 425703.

It is an arithmetic number, because the mean of its divisors is an integer number (16171166).

Almost surely, 2^125113611 is an apocalyptic number.

125113611 is a deficient number, since it is larger than the sum of its proper divisors (68940381).

125113611 is an equidigital number, since it uses as much as digits as its factorization.

125113611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851130 (or 851123 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 125113611 is about 11185.4195719249. The cubic root of 125113611 is about 500.1514354633.

The spelling of 125113611 in words is "one hundred twenty-five million, one hundred thirteen thousand, six hundred eleven".