126892505 has 16 divisors (see below), whose sum is σ = 163877904. Its totient is φ = 93972480.

The previous prime is 126892489. The next prime is 126892523. The reversal of 126892505 is 505298621.

It can be written as a sum of positive squares in 8 ways, for example, as 644809 + 126247696 = 803^2 + 11236^2 .

It is not a de Polignac number, because 126892505 - 2⁴ = 126892489 is a prime.

It is a super-2 number, since 2×126892505² = 32203415650350050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7052 + ... + 17421.

It is an arithmetic number, because the mean of its divisors is an integer number (10242369).

Almost surely, 2^126892505 is an apocalyptic number.

It is an amenable number.

126892505 is a deficient number, since it is larger than the sum of its proper divisors (36985399).

126892505 is a wasteful number, since it uses less digits than its factorization.

126892505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24556.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 126892505 is about 11264.6573405497. The cubic root of 126892505 is about 502.5107115527.

The spelling of 126892505 in words is "one hundred twenty-six million, eight hundred ninety-two thousand, five hundred five".