742562531 has 2 divisors, whose sum is σ = 742562532. Its totient is φ = 742562530.

The previous prime is 742562501. The next prime is 742562551. The reversal of 742562531 is 135265247.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742562531 is a prime.

It is a super-2 number, since 2×742562531² = 1102798224890251922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 742562491 and 742562500.

It is not a weakly prime, because it can be changed into another prime (742562501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371281265 + 371281266.

It is an arithmetic number, because the mean of its divisors is an integer number (371281266).

Almost surely, 2^742562531 is an apocalyptic number.

742562531 is a deficient number, since it is larger than the sum of its proper divisors (1).

742562531 is an equidigital number, since it uses as much as digits as its factorization.

742562531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 742562531 is about 27250.0005688073. Note that the first 3 decimals coincide. The cubic root of 742562531 is about 905.5470298608.

The spelling of 742562531 in words is "seven hundred forty-two million, five hundred sixty-two thousand, five hundred thirty-one".