151344442 has 4 divisors (see below), whose sum is σ = 227016666. Its totient is φ = 75672220.

The previous prime is 151344437. The next prime is 151344461. The reversal of 151344442 is 244443151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244443151 = 19 ⋅12865429.

It can be written as a sum of positive squares in only one way, i.e., 83923921 + 67420521 = 9161^2 + 8211^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151344442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37836109 + ... + 37836112.

Almost surely, 2^151344442 is an apocalyptic number.

151344442 is a deficient number, since it is larger than the sum of its proper divisors (75672224).

151344442 is an equidigital number, since it uses as much as digits as its factorization.

151344442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75672223.

The product of its digits is 7680, while the sum is 28.

The square root of 151344442 is about 12302.2128903706. The cubic root of 151344442 is about 532.9119907440.

Adding to 151344442 its reverse (244443151), we get a palindrome (395787593).

The spelling of 151344442 in words is "one hundred fifty-one million, three hundred forty-four thousand, four hundred forty-two".