1013889155 has 8 divisors (see below), whose sum is σ = 1258621200. Its totient is φ = 783141856.

The previous prime is 1013889139. The next prime is 1013889203. The reversal of 1013889155 is 5519883101.

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 1013889155 - 2⁴ = 1013889139 is a prime.

It is a super-2 number, since 2×1013889155² = 2055942437253228050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496025 + ... + 3496314.

It is an arithmetic number, because the mean of its divisors is an integer number (157327650).

Almost surely, 2^1013889155 is an apocalyptic number.

1013889155 is a deficient number, since it is larger than the sum of its proper divisors (244732045).

1013889155 is an equidigital number, since it uses as much as digits as its factorization.

1013889155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992373.

The product of its (nonzero) digits is 43200, while the sum is 41.

The square root of 1013889155 is about 31841.6261362387. The cubic root of 1013889155 is about 1004.6084479167.

The spelling of 1013889155 in words is "one billion, thirteen million, eight hundred eighty-nine thousand, one hundred fifty-five".