1238674531 has 2 divisors, whose sum is σ = 1238674532. Its totient is φ = 1238674530.

The previous prime is 1238674523. The next prime is 1238674559. The reversal of 1238674531 is 1354768321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1238674531 - 2³ = 1238674523 is a prime.

It is a super-2 number, since 2×1238674531² = 3068629187496139922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1238674231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619337265 + 619337266.

It is an arithmetic number, because the mean of its divisors is an integer number (619337266).

Almost surely, 2^1238674531 is an apocalyptic number.

1238674531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238674531 is an equidigital number, since it uses as much as digits as its factorization.

1238674531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 1238674531 is about 35194.8082961109. The cubic root of 1238674531 is about 1073.9541386856.

The spelling of 1238674531 in words is "one billion, two hundred thirty-eight million, six hundred seventy-four thousand, five hundred thirty-one".