126885985 has 12 divisors (see below), whose sum is σ = 153544212. Its totient is φ = 100658528.

The previous prime is 126885973. The next prime is 126886033. The reversal of 126885985 is 589588621.

It can be written as a sum of positive squares in 2 ways, for example, as 84492864 + 42393121 = 9192^2 + 6511^2 .

It is not a de Polignac number, because 126885985 - 2⁵ = 126885953 is a prime.

It is a super-2 number, since 2×126885985² = 32200106378840450, 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 11 ways as a sum of consecutive naturals, for example, 331104 + ... + 331486.

It is an arithmetic number, because the mean of its divisors is an integer number (12795351).

Almost surely, 2^126885985 is an apocalyptic number.

It is an amenable number.

126885985 is a deficient number, since it is larger than the sum of its proper divisors (26658227).

126885985 is an frugal number, since it uses more digits than its factorization.

126885985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 561 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 52.

The square root of 126885985 is about 11264.3679361072. The cubic root of 126885985 is about 502.5021047246.

The spelling of 126885985 in words is "one hundred twenty-six million, eight hundred eighty-five thousand, nine hundred eighty-five".