974127139 has 8 divisors (see below), whose sum is σ = 1008065520. Its totient is φ = 940212000.

The previous prime is 974127101. The next prime is 974127181. The reversal of 974127139 is 931721479.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 974127139 - 2¹¹ = 974125091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 974127095 and 974127104.

It is not an unprimeable number, because it can be changed into a prime (974107139) 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, 163564 + ... + 169414.

It is an arithmetic number, because the mean of its divisors is an integer number (126008190).

Almost surely, 2^974127139 is an apocalyptic number.

974127139 is a deficient number, since it is larger than the sum of its proper divisors (33938381).

974127139 is a wasteful number, since it uses less digits than its factorization.

974127139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11621.

The product of its digits is 95256, while the sum is 43.

The square root of 974127139 is about 31211.0099003541. The cubic root of 974127139 is about 991.3002467762.

The spelling of 974127139 in words is "nine hundred seventy-four million, one hundred twenty-seven thousand, one hundred thirty-nine".