124389081 has 32 divisors (see below), whose sum is σ = 191216640. Its totient is φ = 79833600.

The previous prime is 124389073. The next prime is 124389101. The reversal of 124389081 is 180983421.

124389081 = 1199² + 1200² + ... + 1279².

It is not a de Polignac number, because 124389081 - 2³ = 124389073 is a prime.

It is a super-2 number, since 2×124389081² = 30945286944049122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124389011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295251 + ... + 295671.

It is an arithmetic number, because the mean of its divisors is an integer number (5975520).

Almost surely, 2^124389081 is an apocalyptic number.

It is an amenable number.

124389081 is a deficient number, since it is larger than the sum of its proper divisors (66827559).

124389081 is a wasteful number, since it uses less digits than its factorization.

124389081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 124389081 is about 11152.9852954265. The cubic root of 124389081 is about 499.1841107068.

The spelling of 124389081 in words is "one hundred twenty-four million, three hundred eighty-nine thousand, eighty-one".