917142137 has 8 divisors (see below), whose sum is σ = 932684352. Its totient is φ = 901616400.

The previous prime is 917142133. The next prime is 917142209. The reversal of 917142137 is 731241719.

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 917142137 - 2² = 917142133 is a prime.

It is a super-2 number, since 2×917142137² = 1682299398921853538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 917142097 and 917142106.

It is not an unprimeable number, because it can be changed into a prime (917142133) 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, 167558 + ... + 172944.

It is an arithmetic number, because the mean of its divisors is an integer number (116585544).

Almost surely, 2^917142137 is an apocalyptic number.

It is an amenable number.

917142137 is a deficient number, since it is larger than the sum of its proper divisors (15542215).

917142137 is a wasteful number, since it uses less digits than its factorization.

917142137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8239.

The product of its digits is 10584, while the sum is 35.

The square root of 917142137 is about 30284.3546571493. The cubic root of 917142137 is about 971.5807071323.

The spelling of 917142137 in words is "nine hundred seventeen million, one hundred forty-two thousand, one hundred thirty-seven".