124487731 has 2 divisors, whose sum is σ = 124487732. Its totient is φ = 124487730.

The previous prime is 124487729. The next prime is 124487773. The reversal of 124487731 is 137784421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124487731 - 2¹ = 124487729 is a prime.

It is a super-2 number, since 2×124487731² = 30994390339056722, which contains 22 as substring.

Together with 124487729, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124482731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62243865 + 62243866.

It is an arithmetic number, because the mean of its divisors is an integer number (62243866).

Almost surely, 2^124487731 is an apocalyptic number.

124487731 is a deficient number, since it is larger than the sum of its proper divisors (1).

124487731 is an equidigital number, since it uses as much as digits as its factorization.

124487731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 124487731 is about 11157.4070016290. The cubic root of 124487731 is about 499.3160394893.

The spelling of 124487731 in words is "one hundred twenty-four million, four hundred eighty-seven thousand, seven hundred thirty-one".