742052157 has 16 divisors (see below), whose sum is σ = 1233541632. Its totient is φ = 385481520.

The previous prime is 742052149. The next prime is 742052167. The reversal of 742052157 is 751250247.

It is not a de Polignac number, because 742052157 - 2³ = 742052149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742052107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605943 + ... + 1606404.

It is an arithmetic number, because the mean of its divisors is an integer number (77096352).

Almost surely, 2^742052157 is an apocalyptic number.

742052157 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

742052157 is a deficient number, since it is larger than the sum of its proper divisors (491489475).

742052157 is a wasteful number, since it uses less digits than its factorization.

742052157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212368.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 742052157 is about 27240.6342987824. The cubic root of 742052157 is about 905.3395171078.

The spelling of 742052157 in words is "seven hundred forty-two million, fifty-two thousand, one hundred fifty-seven".