9042542231 has 2 divisors, whose sum is σ = 9042542232. Its totient is φ = 9042542230.

The previous prime is 9042542219. The next prime is 9042542237. The reversal of 9042542231 is 1322452409.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9042542231 is a prime.

It is a super-2 number, since 2×9042542231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9042542237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521271115 + 4521271116.

It is an arithmetic number, because the mean of its divisors is an integer number (4521271116).

Almost surely, 2^9042542231 is an apocalyptic number.

9042542231 is a deficient number, since it is larger than the sum of its proper divisors (1).

9042542231 is an equidigital number, since it uses as much as digits as its factorization.

9042542231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 9042542231 is about 95092.2827100075. The cubic root of 9042542231 is about 2083.3561319802.

The spelling of 9042542231 in words is "nine billion, forty-two million, five hundred forty-two thousand, two hundred thirty-one".