126621475 has 6 divisors (see below), whose sum is σ = 157010660. Its totient is φ = 101297160.

The previous prime is 126621449. The next prime is 126621479. The reversal of 126621475 is 574126621.

It is not a de Polignac number, because 126621475 - 2²³ = 118232867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126621475.

It is not an unprimeable number, because it can be changed into a prime (126621479) 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 5 ways as a sum of consecutive naturals, for example, 2532405 + ... + 2532454.

Almost surely, 2^126621475 is an apocalyptic number.

126621475 is a deficient number, since it is larger than the sum of its proper divisors (30389185).

126621475 is an equidigital number, since it uses as much as digits as its factorization.

126621475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064869 (or 5064864 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 126621475 is about 11252.6208058390. The cubic root of 126621475 is about 502.1526852581.

The spelling of 126621475 in words is "one hundred twenty-six million, six hundred twenty-one thousand, four hundred seventy-five".