113771381 has 2 divisors, whose sum is σ = 113771382. Its totient is φ = 113771380.

The previous prime is 113771369. The next prime is 113771387. The reversal of 113771381 is 183177311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65691025 + 48080356 = 8105^2 + 6934^2 .

It is a cyclic number.

It is not a de Polignac number, because 113771381 - 2¹⁸ = 113509237 is a prime.

It is a super-2 number, since 2×113771381² = 25887854269294322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113771387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56885690 + 56885691.

It is an arithmetic number, because the mean of its divisors is an integer number (56885691).

Almost surely, 2^113771381 is an apocalyptic number.

It is an amenable number.

113771381 is a deficient number, since it is larger than the sum of its proper divisors (1).

113771381 is an equidigital number, since it uses as much as digits as its factorization.

113771381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 32.

The square root of 113771381 is about 10666.3668134937. The cubic root of 113771381 is about 484.5564102231.

The spelling of 113771381 in words is "one hundred thirteen million, seven hundred seventy-one thousand, three hundred eighty-one".