125355818 has 12 divisors (see below), whose sum is σ = 218733282. Its totient is φ = 53723880.

The previous prime is 125355809. The next prime is 125355827. The reversal of 125355818 is 818553521.

It is an interprime number because it is at equal distance from previous prime (125355809) and next prime (125355827).

It can be written as a sum of positive squares in only one way, i.e., 79156609 + 46199209 = 8897^2 + 6797^2 .

It is a super-2 number, since 2×125355818² = 31428162212898248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639473 + ... + 639668.

Almost surely, 2^125355818 is an apocalyptic number.

125355818 is a deficient number, since it is larger than the sum of its proper divisors (93377464).

125355818 is a wasteful number, since it uses less digits than its factorization.

125355818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279157 (or 1279150 counting only the distinct ones).

The product of its digits is 48000, while the sum is 38.

The square root of 125355818 is about 11196.2412442748. The cubic root of 125355818 is about 500.4739745543.

The spelling of 125355818 in words is "one hundred twenty-five million, three hundred fifty-five thousand, eight hundred eighteen".