742134023 has 4 divisors (see below), whose sum is σ = 742267968. Its totient is φ = 742000080.

The previous prime is 742134011. The next prime is 742134047. The reversal of 742134023 is 320431247.

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 742134023 - 2⁸ = 742133767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742133983 and 742134001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742134223) 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, 58286 + ... + 69867.

It is an arithmetic number, because the mean of its divisors is an integer number (185566992).

Almost surely, 2^742134023 is an apocalyptic number.

742134023 is a deficient number, since it is larger than the sum of its proper divisors (133945).

742134023 is a wasteful number, since it uses less digits than its factorization.

742134023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133944.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 742134023 is about 27242.1369022329. The cubic root of 742134023 is about 905.3728093766.

The spelling of 742134023 in words is "seven hundred forty-two million, one hundred thirty-four thousand, twenty-three".