631113153 has 32 divisors (see below), whose sum is σ = 930314112. Its totient is φ = 377395200.

The previous prime is 631113143. The next prime is 631113157. The reversal of 631113153 is 351311136.

It is not a de Polignac number, because 631113153 - 2⁵ = 631113121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (631113157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 937425 + ... + 938097.

It is an arithmetic number, because the mean of its divisors is an integer number (29072316).

Almost surely, 2^631113153 is an apocalyptic number.

It is an amenable number.

631113153 is a deficient number, since it is larger than the sum of its proper divisors (299200959).

631113153 is a wasteful number, since it uses less digits than its factorization.

631113153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 810, while the sum is 24.

The square root of 631113153 is about 25121.9655481015. The cubic root of 631113153 is about 857.7664925494.

Adding to 631113153 its reverse (351311136), we get a palindrome (982424289).

The spelling of 631113153 in words is "six hundred thirty-one million, one hundred thirteen thousand, one hundred fifty-three".