113440157 has 4 divisors (see below), whose sum is σ = 113518236. Its totient is φ = 113362080.

The previous prime is 113440147. The next prime is 113440181. The reversal of 113440157 is 751044311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751044311 = 457 ⋅1643423.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 33051001 = 8966^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 113440157 - 2⁸ = 113439901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113440147) 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, 36818 + ... + 39779.

It is an arithmetic number, because the mean of its divisors is an integer number (28379559).

Almost surely, 2^113440157 is an apocalyptic number.

It is an amenable number.

113440157 is a deficient number, since it is larger than the sum of its proper divisors (78079).

113440157 is an equidigital number, since it uses as much as digits as its factorization.

113440157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78078.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 113440157 is about 10650.8289348764. The cubic root of 113440157 is about 484.0857215039.

Adding to 113440157 its reverse (751044311), we get a palindrome (864484468).

The spelling of 113440157 in words is "one hundred thirteen million, four hundred forty thousand, one hundred fifty-seven".