151809742 has 32 divisors (see below), whose sum is σ = 272779200. Its totient is φ = 63292320.

The previous prime is 151809731. The next prime is 151809799. The reversal of 151809742 is 247908151.

151809742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×151809742² = 46092395532213128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22392 + ... + 28372.

It is an arithmetic number, because the mean of its divisors is an integer number (8524350).

Almost surely, 2^151809742 is an apocalyptic number.

151809742 is a deficient number, since it is larger than the sum of its proper divisors (120969458).

151809742 is an equidigital number, since it uses as much as digits as its factorization.

151809742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041 (or 6027 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 151809742 is about 12321.1096091221. The cubic root of 151809742 is about 533.4575680203.

The spelling of 151809742 in words is "one hundred fifty-one million, eight hundred nine thousand, seven hundred forty-two".