124252531 has 4 divisors (see below), whose sum is σ = 133810432. Its totient is φ = 114694632.

The previous prime is 124252519. The next prime is 124252553. The reversal of 124252531 is 135252421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 124252531 - 2⁹ = 124252019 is a prime.

It is a super-2 number, since 2×124252531² = 30877382919811922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124252496 and 124252505.

It is not an unprimeable number, because it can be changed into a prime (124252231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4778931 + ... + 4778956.

It is an arithmetic number, because the mean of its divisors is an integer number (33452608).

Almost surely, 2^124252531 is an apocalyptic number.

124252531 is a deficient number, since it is larger than the sum of its proper divisors (9557901).

124252531 is an equidigital number, since it uses as much as digits as its factorization.

124252531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557900.

The product of its digits is 2400, while the sum is 25.

The square root of 124252531 is about 11146.8619350919. The cubic root of 124252531 is about 499.0013815167.

The spelling of 124252531 in words is "one hundred twenty-four million, two hundred fifty-two thousand, five hundred thirty-one".