152320146 has 16 divisors (see below), whose sum is σ = 332335008. Its totient is φ = 46157600.

The previous prime is 152320139. The next prime is 152320159. The reversal of 152320146 is 641023251.

It is a super-2 number, since 2×152320146² = 46402853754922632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153875 + ... + 1154006.

It is an arithmetic number, because the mean of its divisors is an integer number (20770938).

Almost surely, 2^152320146 is an apocalyptic number.

152320146 is an abundant number, since it is smaller than the sum of its proper divisors (180014862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152320146 is a wasteful number, since it uses less digits than its factorization.

152320146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307897.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 152320146 is about 12341.8048112908. The cubic root of 152320146 is about 534.0547503795.

Adding to 152320146 its reverse (641023251), we get a palindrome (793343397).

The spelling of 152320146 in words is "one hundred fifty-two million, three hundred twenty thousand, one hundred forty-six".