1361000553 has 16 divisors (see below), whose sum is σ = 1999242432. Its totient is φ = 816680000.

The previous prime is 1361000521. The next prime is 1361000567. The reversal of 1361000553 is 3550001631.

It is a cyclic number.

It is not a de Polignac number, because 1361000553 - 2⁵ = 1361000521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361000503) 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, 200838 + ... + 207503.

It is an arithmetic number, because the mean of its divisors is an integer number (124952652).

Almost surely, 2^1361000553 is an apocalyptic number.

It is an amenable number.

1361000553 is a deficient number, since it is larger than the sum of its proper divisors (638241879).

1361000553 is a wasteful number, since it uses less digits than its factorization.

1361000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408456.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1361000553 is about 36891.7409862966. The cubic root of 1361000553 is about 1108.2032867912.

The spelling of 1361000553 in words is "one billion, three hundred sixty-one million, five hundred fifty-three", and thus it is an aban number.