31352493147 has 8 divisors (see below), whose sum is σ = 42036863040. Its totient is φ = 20784892680.

The previous prime is 31352493127. The next prime is 31352493149. The reversal of 31352493147 is 74139425313.

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

It is not a de Polignac number, because 31352493147 - 2⁸ = 31352492891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31352493099 and 31352493108.

It is not an unprimeable number, because it can be changed into a prime (31352493149) 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, 29191729 + ... + 29192802.

It is an arithmetic number, because the mean of its divisors is an integer number (5254607880).

Almost surely, 2^31352493147 is an apocalyptic number.

31352493147 is a deficient number, since it is larger than the sum of its proper divisors (10684369893).

31352493147 is a wasteful number, since it uses less digits than its factorization.

31352493147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58384713.

The product of its digits is 272160, while the sum is 42.

The spelling of 31352493147 in words is "thirty-one billion, three hundred fifty-two million, four hundred ninety-three thousand, one hundred forty-seven".