151500442 has 4 divisors (see below), whose sum is σ = 227250666. Its totient is φ = 75750220.

The previous prime is 151500431. The next prime is 151500443. The reversal of 151500442 is 244005151.

151500442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244005151 = 13 ⋅18769627.

It can be written as a sum of positive squares in only one way, i.e., 130165281 + 21335161 = 11409^2 + 4619^2 .

It is not an unprimeable number, because it can be changed into a prime (151500443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37875109 + ... + 37875112.

Almost surely, 2^151500442 is an apocalyptic number.

151500442 is a deficient number, since it is larger than the sum of its proper divisors (75750224).

151500442 is an equidigital number, since it uses as much as digits as its factorization.

151500442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75750223.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 151500442 is about 12308.5515801007. The cubic root of 151500442 is about 533.0950295614.

Adding to 151500442 its reverse (244005151), we get a palindrome (395505593).

The spelling of 151500442 in words is "one hundred fifty-one million, five hundred thousand, four hundred forty-two".