971124431 has 4 divisors (see below), whose sum is σ = 971599512. Its totient is φ = 970649352.

The previous prime is 971124397. The next prime is 971124433. The reversal of 971124431 is 134421179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 971124431 - 2⁶ = 971124367 is a prime.

It is a super-2 number, since 2×971124431² = 1886165320970147522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971124433) 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, 234461 + ... + 238566.

It is an arithmetic number, because the mean of its divisors is an integer number (242899878).

Almost surely, 2^971124431 is an apocalyptic number.

971124431 is a deficient number, since it is larger than the sum of its proper divisors (475081).

971124431 is a wasteful number, since it uses less digits than its factorization.

971124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475080.

The product of its digits is 6048, while the sum is 32.

The square root of 971124431 is about 31162.8694282154. The cubic root of 971124431 is about 990.2806506297.

The spelling of 971124431 in words is "nine hundred seventy-one million, one hundred twenty-four thousand, four hundred thirty-one".