118698431 has 4 divisors (see below), whose sum is σ = 119073192. Its totient is φ = 118323672.

The previous prime is 118698409. The next prime is 118698449. The reversal of 118698431 is 134896811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134896811 = 7 ⋅19270973.

It is a cyclic number.

It is not a de Polignac number, because 118698431 - 2⁶ = 118698367 is a prime.

It is a super-2 number, since 2×118698431² = 28178635043723522, which 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 (118698451) 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, 186905 + ... + 187538.

It is an arithmetic number, because the mean of its divisors is an integer number (29768298).

Almost surely, 2^118698431 is an apocalyptic number.

118698431 is a deficient number, since it is larger than the sum of its proper divisors (374761).

118698431 is an equidigital number, since it uses as much as digits as its factorization.

118698431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374760.

The product of its digits is 41472, while the sum is 41.

The square root of 118698431 is about 10894.8809539159. The cubic root of 118698431 is about 491.4526253751.

The spelling of 118698431 in words is "one hundred eighteen million, six hundred ninety-eight thousand, four hundred thirty-one".