152346442 has 4 divisors (see below), whose sum is σ = 228519666. Its totient is φ = 76173220.

The previous prime is 152346419. The next prime is 152346449. The reversal of 152346442 is 244643251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128346241 + 24000201 = 11329^2 + 4899^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (152346449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38086609 + ... + 38086612.

Almost surely, 2^152346442 is an apocalyptic number.

152346442 is a deficient number, since it is larger than the sum of its proper divisors (76173224).

152346442 is an equidigital number, since it uses as much as digits as its factorization.

152346442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76173223.

The product of its digits is 23040, while the sum is 31.

The square root of 152346442 is about 12342.8700876255. The cubic root of 152346442 is about 534.0854810391.

Adding to 152346442 its reverse (244643251), we get a palindrome (396989693).

The spelling of 152346442 in words is "one hundred fifty-two million, three hundred forty-six thousand, four hundred forty-two".