1013144355 has 20 divisors (see below), whose sum is σ = 1816155792. Its totient is φ = 540343440.

The previous prime is 1013144351. The next prime is 1013144441. The reversal of 1013144355 is 5534413101.

It is a happy number.

It is not a de Polignac number, because 1013144355 - 2² = 1013144351 is a prime.

It is a super-2 number, since 2×1013144355² = 2052922968136732050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1013144351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1250391 + ... + 1251200.

Almost surely, 2^1013144355 is an apocalyptic number.

1013144355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1013144355 is a deficient number, since it is larger than the sum of its proper divisors (803011437).

1013144355 is an equidigital number, since it uses as much as digits as its factorization.

1013144355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501608 (or 2501599 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1013144355 is about 31829.9286050095. The cubic root of 1013144355 is about 1004.3623935167.

Adding to 1013144355 its reverse (5534413101), we get a palindrome (6547557456).

The spelling of 1013144355 in words is "one billion, thirteen million, one hundred forty-four thousand, three hundred fifty-five".