1242514631 has 2 divisors, whose sum is σ = 1242514632. Its totient is φ = 1242514630.

The previous prime is 1242514621. The next prime is 1242514639. The reversal of 1242514631 is 1364152421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242514631 is a prime.

It is a super-2 number, since 2×1242514631² = 3087685216498132322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1242514594 and 1242514603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242514639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621257315 + 621257316.

It is an arithmetic number, because the mean of its divisors is an integer number (621257316).

Almost surely, 2^1242514631 is an apocalyptic number.

1242514631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242514631 is an equidigital number, since it uses as much as digits as its factorization.

1242514631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1242514631 is about 35249.3210005526. The cubic root of 1242514631 is about 1075.0628067865.

The spelling of 1242514631 in words is "one billion, two hundred forty-two million, five hundred fourteen thousand, six hundred thirty-one".