365554961 has 16 divisors (see below), whose sum is σ = 391813200. Its totient is φ = 339855360.

The previous prime is 365554957. The next prime is 365554963. The reversal of 365554961 is 169455563.

It can be written as a sum of positive squares in 8 ways, for example, as 45144961 + 320410000 = 6719^2 + 17900^2 .

It is a cyclic number.

It is not a de Polignac number, because 365554961 - 2² = 365554957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (365554963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701381 + ... + 701901.

It is an arithmetic number, because the mean of its divisors is an integer number (24488325).

Almost surely, 2^365554961 is an apocalyptic number.

It is an amenable number.

365554961 is a deficient number, since it is larger than the sum of its proper divisors (26258239).

365554961 is a wasteful number, since it uses less digits than its factorization.

365554961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964.

The product of its digits is 486000, while the sum is 44.

The square root of 365554961 is about 19119.4916511920. The cubic root of 365554961 is about 715.0189644015.

The spelling of 365554961 in words is "three hundred sixty-five million, five hundred fifty-four thousand, nine hundred sixty-one".