1013638855 has 8 divisors (see below), whose sum is σ = 1287917712. Its totient is φ = 763210368.

The previous prime is 1013638853. The next prime is 1013638861. The reversal of 1013638855 is 5588363101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013638855 - 2¹ = 1013638853 is a prime.

It is a super-2 number, since 2×1013638855² = 2054927456731422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013638853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5962497 + ... + 5962666.

It is an arithmetic number, because the mean of its divisors is an integer number (160989714).

Almost surely, 2^1013638855 is an apocalyptic number.

1013638855 is a deficient number, since it is larger than the sum of its proper divisors (274278857).

1013638855 is a wasteful number, since it uses less digits than its factorization.

1013638855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11925185.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1013638855 is about 31837.6955039149. The cubic root of 1013638855 is about 1004.5257714925.

The spelling of 1013638855 in words is "one billion, thirteen million, six hundred thirty-eight thousand, eight hundred fifty-five".