631709054 has 4 divisors (see below), whose sum is σ = 947563584. Its totient is φ = 315854526.

The previous prime is 631709051. The next prime is 631709101. The reversal of 631709054 is 450907136.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631709051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157927262 + ... + 157927265.

It is an arithmetic number, because the mean of its divisors is an integer number (236890896).

Almost surely, 2^631709054 is an apocalyptic number.

631709054 is a deficient number, since it is larger than the sum of its proper divisors (315854530).

631709054 is a wasteful number, since it uses less digits than its factorization.

631709054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315854529.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 631709054 is about 25133.8229085828. The cubic root of 631709054 is about 858.0363771269.

The spelling of 631709054 in words is "six hundred thirty-one million, seven hundred nine thousand, fifty-four".