126913306 has 16 divisors (see below), whose sum is σ = 208377288. Its totient is φ = 57614400.

The previous prime is 126913291. The next prime is 126913361. The reversal of 126913306 is 603319621.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 111112681 = 3975^2 + 10541^2 .

It is a super-2 number, since 2×126913306² = 32213974479699272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38425 + ... + 41596.

Almost surely, 2^126913306 is an apocalyptic number.

126913306 is a deficient number, since it is larger than the sum of its proper divisors (81463982).

126913306 is a wasteful number, since it uses less digits than its factorization.

126913306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80097.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 126913306 is about 11265.5805886781. The cubic root of 126913306 is about 502.5381682682.

The spelling of 126913306 in words is "one hundred twenty-six million, nine hundred thirteen thousand, three hundred six".