118151097 has 4 divisors (see below), whose sum is σ = 157534800. Its totient is φ = 78767396.

The previous prime is 118151087. The next prime is 118151119. The reversal of 118151097 is 790151811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790151811 = 3 ⋅263383937.

It is a cyclic number.

It is not a de Polignac number, because 118151097 - 2⁸ = 118150841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118151087) 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, 19691847 + ... + 19691852.

It is an arithmetic number, because the mean of its divisors is an integer number (39383700).

Almost surely, 2^118151097 is an apocalyptic number.

It is an amenable number.

118151097 is a deficient number, since it is larger than the sum of its proper divisors (39383703).

118151097 is an equidigital number, since it uses as much as digits as its factorization.

118151097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39383702.

The product of its (nonzero) digits is 2520, while the sum is 33.

The square root of 118151097 is about 10869.7330693996. The cubic root of 118151097 is about 490.6960772084.

The spelling of 118151097 in words is "one hundred eighteen million, one hundred fifty-one thousand, ninety-seven".