632736145 has 4 divisors (see below), whose sum is σ = 759283380. Its totient is φ = 506188912.

The previous prime is 632736089. The next prime is 632736161. The reversal of 632736145 is 541637236.

632736145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101848464 + 530887681 = 10092^2 + 23041^2 .

It is a cyclic number.

It is not a de Polignac number, because 632736145 - 2¹⁵ = 632703377 is a prime.

It is a super-2 number, since 2×632736145² = 800710058378922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63273610 + ... + 63273619.

It is an arithmetic number, because the mean of its divisors is an integer number (189820845).

Almost surely, 2^632736145 is an apocalyptic number.

It is an amenable number.

632736145 is a deficient number, since it is larger than the sum of its proper divisors (126547235).

632736145 is a wasteful number, since it uses less digits than its factorization.

632736145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126547234.

The product of its digits is 90720, while the sum is 37.

The square root of 632736145 is about 25154.2470569087. The cubic root of 632736145 is about 858.5011502916.

The spelling of 632736145 in words is "six hundred thirty-two million, seven hundred thirty-six thousand, one hundred forty-five".