631015142 has 8 divisors (see below), whose sum is σ = 948099432. Its totient is φ = 314982000.

The previous prime is 631015117. The next prime is 631015159. The reversal of 631015142 is 241510136.

631015142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261284 + ... + 263687.

It is an arithmetic number, because the mean of its divisors is an integer number (118512429).

Almost surely, 2^631015142 is an apocalyptic number.

631015142 is a deficient number, since it is larger than the sum of its proper divisors (317084290).

631015142 is a wasteful number, since it uses less digits than its factorization.

631015142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525574.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 631015142 is about 25120.0147691039. The cubic root of 631015142 is about 857.7220869339.

Adding to 631015142 its reverse (241510136), we get a palindrome (872525278).

The spelling of 631015142 in words is "six hundred thirty-one million, fifteen thousand, one hundred forty-two".