115445431 has 4 divisors (see below), whose sum is σ = 115524864. Its totient is φ = 115366000.

The previous prime is 115445383. The next prime is 115445437. The reversal of 115445431 is 134544511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134544511 = 17 ⋅7914383.

It is a cyclic number.

It is not a de Polignac number, because 115445431 - 2¹⁹ = 114921143 is a prime.

It is a super-2 number, since 2×115445431² = 26655295077551522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115445431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115445437) 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, 37495 + ... + 40456.

It is an arithmetic number, because the mean of its divisors is an integer number (28881216).

Almost surely, 2^115445431 is an apocalyptic number.

115445431 is a deficient number, since it is larger than the sum of its proper divisors (79433).

115445431 is an equidigital number, since it uses as much as digits as its factorization.

115445431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79432.

The product of its digits is 4800, while the sum is 28.

The square root of 115445431 is about 10744.5535505204. The cubic root of 115445431 is about 486.9214610517.

Adding to 115445431 its reverse (134544511), we get a palindrome (249989942).

The spelling of 115445431 in words is "one hundred fifteen million, four hundred forty-five thousand, four hundred thirty-one".