942172971 has 4 divisors (see below), whose sum is σ = 1256230632. Its totient is φ = 628115312.

The previous prime is 942172937. The next prime is 942173003. The reversal of 942172971 is 179271249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179271249 = 3 ⋅59757083.

It is a cyclic number.

It is not a de Polignac number, because 942172971 - 2⁹ = 942172459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (942172901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157028826 + ... + 157028831.

It is an arithmetic number, because the mean of its divisors is an integer number (314057658).

Almost surely, 2^942172971 is an apocalyptic number.

942172971 is a deficient number, since it is larger than the sum of its proper divisors (314057661).

942172971 is a wasteful number, since it uses less digits than its factorization.

942172971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314057660.

The product of its digits is 63504, while the sum is 42.

The square root of 942172971 is about 30694.8362269617. The cubic root of 942172971 is about 980.3403548476.

The spelling of 942172971 in words is "nine hundred forty-two million, one hundred seventy-two thousand, nine hundred seventy-one".