126631090 has 32 divisors (see below), whose sum is σ = 231081984. Its totient is φ = 49959360.

The previous prime is 126631033. The next prime is 126631091. The reversal of 126631090 is 90136621.

It is not an unprimeable number, because it can be changed into a prime (126631091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318772 + ... + 319168.

It is an arithmetic number, because the mean of its divisors is an integer number (7221312).

Almost surely, 2^126631090 is an apocalyptic number.

126631090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126631090 is a deficient number, since it is larger than the sum of its proper divisors (104450894).

126631090 is a wasteful number, since it uses less digits than its factorization.

126631090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 126631090 is about 11253.0480315335. The cubic root of 126631090 is about 502.1653952556.

The spelling of 126631090 in words is "one hundred twenty-six million, six hundred thirty-one thousand, ninety".