125132369 has 6 divisors (see below), whose sum is σ = 128257794. Its totient is φ = 122010480.

The previous prime is 125132339. The next prime is 125132383. The reversal of 125132369 is 963231521.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 48832144 = 8735^2 + 6988^2 .

It is not a de Polignac number, because 125132369 - 2²⁴ = 108355153 is a prime.

It is a super-2 number, since 2×125132369² = 31316219543104322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125132339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70754 + ... + 72500.

It is an arithmetic number, because the mean of its divisors is an integer number (21376299).

Almost surely, 2^125132369 is an apocalyptic number.

It is an amenable number.

125132369 is a deficient number, since it is larger than the sum of its proper divisors (3125425).

125132369 is an frugal number, since it uses more digits than its factorization.

125132369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535 (or 1788 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 125132369 is about 11186.2580427952. The cubic root of 125132369 is about 500.1764297378.

The spelling of 125132369 in words is "one hundred twenty-five million, one hundred thirty-two thousand, three hundred sixty-nine".