124573681 has 6 divisors (see below), whose sum is σ = 130225970. Its totient is φ = 119156928.

The previous prime is 124573679. The next prime is 124573733. The reversal of 124573681 is 186375421.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 50183056 = 8625^2 + 7084^2 .

It is not a de Polignac number, because 124573681 - 2¹ = 124573679 is a prime.

It is a super-2 number, since 2×124573681² = 31037203995779522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124573681.

It is not an unprimeable number, because it can be changed into a prime (124573601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117216 + ... + 118273.

Almost surely, 2^124573681 is an apocalyptic number.

It is an amenable number.

124573681 is a deficient number, since it is larger than the sum of its proper divisors (5652289).

124573681 is an equidigital number, since it uses as much as digits as its factorization.

124573681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235535 (or 235512 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 124573681 is about 11161.2580384113. The cubic root of 124573681 is about 499.4309272247.

The spelling of 124573681 in words is "one hundred twenty-four million, five hundred seventy-three thousand, six hundred eighty-one".