125515133 has 8 divisors (see below), whose sum is σ = 126594048. Its totient is φ = 124440624.

The previous prime is 125515127. The next prime is 125515139. The reversal of 125515133 is 331515521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125515127) and next prime (125515139).

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

It is a cyclic number.

It is not a de Polignac number, because 125515133 - 2⁶ = 125515069 is a prime.

It is a super-2 number, since 2×125515133² = 31508097224015378, 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 (125515139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79316 + ... + 80882.

It is an arithmetic number, because the mean of its divisors is an integer number (15824256).

Almost surely, 2^125515133 is an apocalyptic number.

It is an amenable number.

125515133 is a deficient number, since it is larger than the sum of its proper divisors (1078915).

125515133 is a wasteful number, since it uses less digits than its factorization.

125515133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its digits is 2250, while the sum is 26.

The square root of 125515133 is about 11203.3536496890. The cubic root of 125515133 is about 500.6859026449.

The spelling of 125515133 in words is "one hundred twenty-five million, five hundred fifteen thousand, one hundred thirty-three".