118972971 has 24 divisors (see below), whose sum is σ = 186207840. Its totient is φ = 72763776.

The previous prime is 118972967. The next prime is 118972981. The reversal of 118972971 is 179279811.

It is a happy number.

It is not a de Polignac number, because 118972971 - 2² = 118972967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118972901) 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, 16495 + ... + 22583.

It is an arithmetic number, because the mean of its divisors is an integer number (7758660).

Almost surely, 2^118972971 is an apocalyptic number.

118972971 is a deficient number, since it is larger than the sum of its proper divisors (67234869).

118972971 is a wasteful number, since it uses less digits than its factorization.

118972971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275 (or 6272 counting only the distinct ones).

The product of its digits is 63504, while the sum is 45.

The square root of 118972971 is about 10907.4731720963. The cubic root of 118972971 is about 491.8312305337.

The spelling of 118972971 in words is "one hundred eighteen million, nine hundred seventy-two thousand, nine hundred seventy-one".