118781151 has 16 divisors (see below), whose sum is σ = 162357888. Its totient is φ = 77220000.

The previous prime is 118781107. The next prime is 118781153. The reversal of 118781151 is 151187811.

It is not a de Polignac number, because 118781151 - 2⁶ = 118781087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118781153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17376 + ... + 23226.

It is an arithmetic number, because the mean of its divisors is an integer number (10147368).

Almost surely, 2^118781151 is an apocalyptic number.

118781151 is a deficient number, since it is larger than the sum of its proper divisors (43576737).

118781151 is a wasteful number, since it uses less digits than its factorization.

118781151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022.

The product of its digits is 2240, while the sum is 33.

The square root of 118781151 is about 10898.6765710338. The cubic root of 118781151 is about 491.5667620179.

The spelling of 118781151 in words is "one hundred eighteen million, seven hundred eighty-one thousand, one hundred fifty-one".