742159631 has 4 divisors (see below), whose sum is σ = 742249200. Its totient is φ = 742070064.

The previous prime is 742159591. The next prime is 742159637. The reversal of 742159631 is 136951247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742159631 - 2¹⁰ = 742158607 is a prime.

It is a super-2 number, since 2×742159631² = 1101601835772112322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742159637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30926 + ... + 49403.

It is an arithmetic number, because the mean of its divisors is an integer number (185562300).

Almost surely, 2^742159631 is an apocalyptic number.

742159631 is a deficient number, since it is larger than the sum of its proper divisors (89569).

742159631 is an equidigital number, since it uses as much as digits as its factorization.

742159631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89568.

The product of its digits is 45360, while the sum is 38.

The square root of 742159631 is about 27242.6069053606. The cubic root of 742159631 is about 905.3832228237.

The spelling of 742159631 in words is "seven hundred forty-two million, one hundred fifty-nine thousand, six hundred thirty-one".