113758157381 has 6 divisors (see below), whose sum is σ = 125039958246. Its totient is φ = 103416506600.

The previous prime is 113758157371. The next prime is 113758157413. The reversal of 113758157381 is 183751857311.

It can be written as a sum of positive squares in only one way, i.e., 102851697025 + 10906460356 = 320705^2 + 104434^2 .

It is not a de Polignac number, because 113758157381 - 2²² = 113753963077 is a prime.

It is a super-2 number, since 2×113758157381² (a number of 23 digits) 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 (113758157311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470074910 + ... + 470075151.

It is an arithmetic number, because the mean of its divisors is an integer number (20839993041).

Almost surely, 2^113758157381 is an apocalyptic number.

113758157381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113758157381 is a deficient number, since it is larger than the sum of its proper divisors (11281800865).

113758157381 is an equidigital number, since it uses as much as digits as its factorization.

113758157381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940150083 (or 940150072 counting only the distinct ones).

The product of its digits is 705600, while the sum is 50.

The spelling of 113758157381 in words is "one hundred thirteen billion, seven hundred fifty-eight million, one hundred fifty-seven thousand, three hundred eighty-one".