1013354991 has 12 divisors (see below), whose sum is σ = 1596801960. Its totient is φ = 614154480.

The previous prime is 1013354983. The next prime is 1013355019. The reversal of 1013354991 is 1994533101.

1013354991 is a `hidden beast` number, since 10 + 13 + 3 + 549 + 91 = 666.

It is not a de Polignac number, because 1013354991 - 2³ = 1013354983 is a prime.

It is a super-2 number, since 2×1013354991² = 2053776675569220162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013354941) 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, 5117856 + ... + 5118053.

It is an arithmetic number, because the mean of its divisors is an integer number (133066830).

Almost surely, 2^1013354991 is an apocalyptic number.

1013354991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1013354991 is a deficient number, since it is larger than the sum of its proper divisors (583446969).

1013354991 is a wasteful number, since it uses less digits than its factorization.

1013354991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235926 (or 10235923 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 1013354991 is about 31833.2372057885. The cubic root of 1013354991 is about 1004.4319920942.

The spelling of 1013354991 in words is "one billion, thirteen million, three hundred fifty-four thousand, nine hundred ninety-one".