1113408137 has 4 divisors (see below), whose sum is σ = 1113513540. Its totient is φ = 1113302736.

The previous prime is 1113408119. The next prime is 1113408157. The reversal of 1113408137 is 7318043111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 161315401 + 952092736 = 12701^2 + 30856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113408137 - 2¹² = 1113404041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113408157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34838 + ... + 58655.

It is an arithmetic number, because the mean of its divisors is an integer number (278378385).

Almost surely, 2^1113408137 is an apocalyptic number.

It is an amenable number.

1113408137 is a deficient number, since it is larger than the sum of its proper divisors (105403).

1113408137 is an equidigital number, since it uses as much as digits as its factorization.

1113408137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105402.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1113408137 is about 33367.7709324432. The cubic root of 1113408137 is about 1036.4574167230.

The spelling of 1113408137 in words is "one billion, one hundred thirteen million, four hundred eight thousand, one hundred thirty-seven".