125299215 has 24 divisors (see below), whose sum is σ = 217676160. Its totient is φ = 66675264.

The previous prime is 125299211. The next prime is 125299253. The reversal of 125299215 is 512992521.

It is a happy number.

It is not a de Polignac number, because 125299215 - 2² = 125299211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125299215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125299211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18649 + ... + 24461.

It is an arithmetic number, because the mean of its divisors is an integer number (9069840).

Almost surely, 2^125299215 is an apocalyptic number.

125299215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125299215 is a deficient number, since it is larger than the sum of its proper divisors (92376945).

125299215 is a wasteful number, since it uses less digits than its factorization.

125299215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303 (or 6300 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 125299215 is about 11193.7131908943. The cubic root of 125299215 is about 500.3986354285.

The spelling of 125299215 in words is "one hundred twenty-five million, two hundred ninety-nine thousand, two hundred fifteen".