152641640 has 32 divisors (see below), whose sum is σ = 363647880. Its totient is φ = 57464832.

The previous prime is 152641637. The next prime is 152641679. The reversal of 152641640 is 46146251.

It can be written as a sum of positive squares in 4 ways, for example, as 140517316 + 12124324 = 11854^2 + 3482^2 .

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, 111557 + ... + 112916.

Almost surely, 2^152641640 is an apocalyptic number.

152641640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152641640 is an abundant number, since it is smaller than the sum of its proper divisors (211006240).

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

152641640 is a wasteful number, since it uses less digits than its factorization.

152641640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224501 (or 224497 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 152641640 is about 12354.8225402067. The cubic root of 152641640 is about 534.4302199585.

Adding to 152641640 its reverse (46146251), we get a palindrome (198787891).

The spelling of 152641640 in words is "one hundred fifty-two million, six hundred forty-one thousand, six hundred forty".