1542112631 has 2 divisors, whose sum is σ = 1542112632. Its totient is φ = 1542112630.

The previous prime is 1542112609. The next prime is 1542112679. The reversal of 1542112631 is 1362112451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1542112631 - 2¹⁰ = 1542111607 is a prime.

It is a super-2 number, since 2×1542112631² = 4756222733379484322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1542112631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542112931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771056315 + 771056316.

It is an arithmetic number, because the mean of its divisors is an integer number (771056316).

Almost surely, 2^1542112631 is an apocalyptic number.

1542112631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542112631 is an equidigital number, since it uses as much as digits as its factorization.

1542112631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 1542112631 is about 39269.7419268322. The cubic root of 1542112631 is about 1155.3281754558.

The spelling of 1542112631 in words is "one billion, five hundred forty-two million, one hundred twelve thousand, six hundred thirty-one".