126947590 has 64 divisors (see below), whose sum is σ = 287608320. Its totient is φ = 39191040.

The previous prime is 126947543. The next prime is 126947591. The reversal of 126947590 is 95749621.

It is a happy number.

It is a super-2 number, since 2×126947590² = 32231381213616200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126947591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86281 + ... + 87739.

It is an arithmetic number, because the mean of its divisors is an integer number (4493880).

Almost surely, 2^126947590 is an apocalyptic number.

126947590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126947590 is an abundant number, since it is smaller than the sum of its proper divisors (160660730).

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

126947590 is a wasteful number, since it uses less digits than its factorization.

126947590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 126947590 is about 11267.1021119008. The cubic root of 126947590 is about 502.5834156052.

The spelling of 126947590 in words is "one hundred twenty-six million, nine hundred forty-seven thousand, five hundred ninety".