118456947 has 24 divisors (see below), whose sum is σ = 195852384. Its totient is φ = 67584384.

The previous prime is 118456927. The next prime is 118456973. The reversal of 118456947 is 749654811.

118456947 is a `hidden beast` number, since 1 + 1 + 84 + 569 + 4 + 7 = 666.

It is not a de Polignac number, because 118456947 - 2¹⁸ = 118194803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118456927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59053 + ... + 61025.

It is an arithmetic number, because the mean of its divisors is an integer number (8160516).

Almost surely, 2^118456947 is an apocalyptic number.

118456947 is a deficient number, since it is larger than the sum of its proper divisors (77395437).

118456947 is a wasteful number, since it uses less digits than its factorization.

118456947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939 (or 2936 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 118456947 is about 10883.7928591094. The cubic root of 118456947 is about 491.1191233042.

The spelling of 118456947 in words is "one hundred eighteen million, four hundred fifty-six thousand, nine hundred forty-seven".