63090145 has 12 divisors (see below), whose sum is σ = 80425404. Its totient is φ = 47502080.

The previous prime is 63090133. The next prime is 63090149. The reversal of 63090145 is 54109036.

63090145 = 5616² + 5617².

It can be written as a sum of positive squares in 6 ways, for example, as 11881809 + 51208336 = 3447^2 + 7156^2 .

It is not a de Polignac number, because 63090145 - 2²⁵ = 29535713 is a prime.

It is a super-2 number, since 2×63090145² = 7960732792242050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63090149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20386 + ... + 23275.

It is an arithmetic number, because the mean of its divisors is an integer number (6702117).

Almost surely, 2^63090145 is an apocalyptic number.

63090145 is the 5617-th centered square number.

It is an amenable number.

63090145 is a deficient number, since it is larger than the sum of its proper divisors (17335259).

63090145 is a wasteful number, since it uses less digits than its factorization.

63090145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43700 (or 43683 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 63090145 is about 7942.9305045430. The cubic root of 63090145 is about 398.0954145287.

The spelling of 63090145 in words is "sixty-three million, ninety thousand, one hundred forty-five".