125365369 has 4 divisors (see below), whose sum is σ = 126515620. Its totient is φ = 124215120.

The previous prime is 125365349. The next prime is 125365391. The reversal of 125365369 is 963563521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963563521 = 4877 ⋅197573.

It can be written as a sum of positive squares in 2 ways, for example, as 37699600 + 87665769 = 6140^2 + 9363^2 .

It is a cyclic number.

It is not a de Polignac number, because 125365369 - 2¹⁵ = 125332601 is a prime.

It is a super-2 number, since 2×125365369² = 31432951489012322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125365319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574962 + ... + 575179.

It is an arithmetic number, because the mean of its divisors is an integer number (31628905).

Almost surely, 2^125365369 is an apocalyptic number.

It is an amenable number.

125365369 is a deficient number, since it is larger than the sum of its proper divisors (1150251).

125365369 is a wasteful number, since it uses less digits than its factorization.

125365369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150250.

The product of its digits is 145800, while the sum is 40.

The square root of 125365369 is about 11196.6677632231. The cubic root of 125365369 is about 500.4866847888.

The spelling of 125365369 in words is "one hundred twenty-five million, three hundred sixty-five thousand, three hundred sixty-nine".