632151261 has 48 divisors (see below), whose sum is σ = 1102233600. Its totient is φ = 341047584.

The previous prime is 632151229. The next prime is 632151283. The reversal of 632151261 is 162151236.

632151261 is a `hidden beast` number, since 632 + 1 + 5 + 1 + 26 + 1 = 666.

It is not a de Polignac number, because 632151261 - 2⁵ = 632151229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632151361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438580 + ... + 440018.

It is an arithmetic number, because the mean of its divisors is an integer number (22963200).

Almost surely, 2^632151261 is an apocalyptic number.

It is an amenable number.

632151261 is a deficient number, since it is larger than the sum of its proper divisors (470082339).

632151261 is a wasteful number, since it uses less digits than its factorization.

632151261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1835 counting only the distinct ones).

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

The square root of 632151261 is about 25142.6184197271. The cubic root of 632151261 is about 858.2365437429.

The spelling of 632151261 in words is "six hundred thirty-two million, one hundred fifty-one thousand, two hundred sixty-one".