63161145 has 24 divisors (see below), whose sum is σ = 110550336. Its totient is φ = 33356448.

The previous prime is 63161143. The next prime is 63161201. The reversal of 63161145 is 54116136.

63161145 is a `hidden beast` number, since 6 + 3 + 1 + 611 + 45 = 666.

It is not a de Polignac number, because 63161145 - 2¹ = 63161143 is a prime.

It is a super-2 number, since 2×63161145² = 7978660475422050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63161143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2179 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (4606264).

Almost surely, 2^63161145 is an apocalyptic number.

It is an amenable number.

63161145 is a deficient number, since it is larger than the sum of its proper divisors (47389191).

63161145 is a wasteful number, since it uses less digits than its factorization.

63161145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13741 (or 13738 counting only the distinct ones).

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

The square root of 63161145 is about 7947.3986309987. The cubic root of 63161145 is about 398.2446939355.

It can be divided in two parts, 631 and 61145, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 63161145 in words is "sixty-three million, one hundred sixty-one thousand, one hundred forty-five".