126995715 has 128 divisors (see below), whose sum is σ = 296755200. Its totient is φ = 49921920.

The previous prime is 126995711. The next prime is 126995731. The reversal of 126995715 is 517599621.

126995715 is a `hidden beast` number, since 12 + 69 + 9 + 571 + 5 = 666.

It is not a de Polignac number, because 126995715 - 2² = 126995711 is a prime.

It is a super-2 number, since 2×126995715² = 32255823256722450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (126995711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 197184 + ... + 197826.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 2^126995715 is an apocalyptic number.

126995715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126995715 is an abundant number, since it is smaller than the sum of its proper divisors (169759485).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126995715 is a wasteful number, since it uses less digits than its factorization.

126995715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 688 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 126995715 is about 11269.2375518488. The cubic root of 126995715 is about 502.6469162755.

The spelling of 126995715 in words is "one hundred twenty-six million, nine hundred ninety-five thousand, seven hundred fifteen".