971672154 has 8 divisors (see below), whose sum is σ = 1943344320. Its totient is φ = 323890716.

The previous prime is 971672147. The next prime is 971672171. The reversal of 971672154 is 451276179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

971672154 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80972674 + ... + 80972685.

It is an arithmetic number, because the mean of its divisors is an integer number (242918040).

Almost surely, 2^971672154 is an apocalyptic number.

971672154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971672154 is a wasteful number, since it uses less digits than its factorization.

971672154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161945364.

The product of its digits is 105840, while the sum is 42.

The square root of 971672154 is about 31171.6562601348. The cubic root of 971672154 is about 990.4667913997.

The spelling of 971672154 in words is "nine hundred seventy-one million, six hundred seventy-two thousand, one hundred fifty-four".