152900640 has 72 divisors (see below), whose sum is σ = 521778348. Its totient is φ = 40773120.

The previous prime is 152900611. The next prime is 152900651. The reversal of 152900640 is 46009251.

152900640 is a `hidden beast` number, since 15 + 2 + 9 + 0 + 0 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 132434064 + 20466576 = 11508^2 + 4524^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51651 + ... + 54530.

Almost surely, 2^152900640 is an apocalyptic number.

152900640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152900640 is an abundant number, since it is smaller than the sum of its proper divisors (368877708).

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

152900640 is a wasteful number, since it uses less digits than its factorization.

152900640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106202 (or 106191 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 152900640 is about 12365.2998346178. The cubic root of 152900640 is about 534.7323201641.

Adding to 152900640 its reverse (46009251), we get a palindrome (198909891).

The spelling of 152900640 in words is "one hundred fifty-two million, nine hundred thousand, six hundred forty".