31714317146 has 4 divisors (see below), whose sum is σ = 47571475722. Its totient is φ = 15857158572.

The previous prime is 31714317143. The next prime is 31714317163. The reversal of 31714317146 is 64171341713.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 28913261521 + 2801055625 = 170039^2 + 52925^2 .

It is not an unprimeable number, because it can be changed into a prime (31714317143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7928579285 + ... + 7928579288.

Almost surely, 2^31714317146 is an apocalyptic number.

31714317146 is a deficient number, since it is larger than the sum of its proper divisors (15857158576).

31714317146 is a wasteful number, since it uses less digits than its factorization.

31714317146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857158575.

The product of its digits is 42336, while the sum is 38.

Adding to 31714317146 its reverse (64171341713), we get a palindrome (95885658859).

The spelling of 31714317146 in words is "thirty-one billion, seven hundred fourteen million, three hundred seventeen thousand, one hundred forty-six".