126740931 has 8 divisors (see below), whose sum is σ = 169278144. Its totient is φ = 84348840.

The previous prime is 126740923. The next prime is 126740941. The reversal of 126740931 is 139047621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126740931 - 2³ = 126740923 is a prime.

It is a super-2 number, since 2×126740931² = 32126527181493522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126740892 and 126740901.

It is not an unprimeable number, because it can be changed into a prime (126740941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34225 + ... + 37746.

It is an arithmetic number, because the mean of its divisors is an integer number (21159768).

Almost surely, 2^126740931 is an apocalyptic number.

126740931 is a deficient number, since it is larger than the sum of its proper divisors (42537213).

126740931 is an equidigital number, since it uses as much as digits as its factorization.

126740931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72561.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 126740931 is about 11257.9274735628. The cubic root of 126740931 is about 502.3105476258.

The spelling of 126740931 in words is "one hundred twenty-six million, seven hundred forty thousand, nine hundred thirty-one".