971672135 has 8 divisors (see below), whose sum is σ = 1332578976. Its totient is φ = 666289440.

The previous prime is 971672131. The next prime is 971672137. The reversal of 971672135 is 531276179.

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

It is not a de Polignac number, because 971672135 - 2² = 971672131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971672092 and 971672101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971672131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13880996 + ... + 13881065.

It is an arithmetic number, because the mean of its divisors is an integer number (166572372).

Almost surely, 2^971672135 is an apocalyptic number.

971672135 is a deficient number, since it is larger than the sum of its proper divisors (360906841).

971672135 is a wasteful number, since it uses less digits than its factorization.

971672135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27762073.

The product of its digits is 79380, while the sum is 41.

The square root of 971672135 is about 31171.6559553707. The cubic root of 971672135 is about 990.4667849438.

The spelling of 971672135 in words is "nine hundred seventy-one million, six hundred seventy-two thousand, one hundred thirty-five".