742791123 has 24 divisors (see below), whose sum is σ = 1118707200. Its totient is φ = 474332544.

The previous prime is 742791113. The next prime is 742791143. The reversal of 742791123 is 321197247.

742791123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742791123 - 2⁹ = 742790611 is a prime.

It is a super-2 number, since 2×742791123² = 1103477304815202258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (742791113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21943 + ... + 44351.

It is an arithmetic number, because the mean of its divisors is an integer number (46612800).

Almost surely, 2^742791123 is an apocalyptic number.

742791123 is a deficient number, since it is larger than the sum of its proper divisors (375916077).

742791123 is a wasteful number, since it uses less digits than its factorization.

742791123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22571 (or 22568 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 742791123 is about 27254.1945945941. The cubic root of 742791123 is about 905.6399421568.

The spelling of 742791123 in words is "seven hundred forty-two million, seven hundred ninety-one thousand, one hundred twenty-three".