1363978053 has 12 divisors (see below), whose sum is σ = 1970517900. Its totient is φ = 909167616.

The previous prime is 1363978043. The next prime is 1363978067. The reversal of 1363978053 is 3508793631.

1363978053 is a `hidden beast` number, since 1 + 3 + 639 + 7 + 8 + 0 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 362445444 + 1001532609 = 19038^2 + 31647^2 .

It is not a de Polignac number, because 1363978053 - 2¹³ = 1363969861 is a prime.

It is a super-2 number, since 2×1363978053² = 3720872258131341618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363978043) 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, 81925 + ... + 97157.

It is an arithmetic number, because the mean of its divisors is an integer number (164209825).

Almost surely, 2^1363978053 is an apocalyptic number.

It is an amenable number.

1363978053 is a deficient number, since it is larger than the sum of its proper divisors (606539847).

1363978053 is a wasteful number, since it uses less digits than its factorization.

1363978053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25188 (or 25185 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1363978053 is about 36932.0734998727. The cubic root of 1363978053 is about 1109.0108475559.

The spelling of 1363978053 in words is "one billion, three hundred sixty-three million, nine hundred seventy-eight thousand, fifty-three".