631549274 has 4 divisors (see below), whose sum is σ = 947323914. Its totient is φ = 315774636.

The previous prime is 631549271. The next prime is 631549279. The reversal of 631549274 is 472945136.

631549274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 629658649 + 1890625 = 25093^2 + 1375^2 .

It is not an unprimeable number, because it can be changed into a prime (631549271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157887317 + ... + 157887320.

Almost surely, 2^631549274 is an apocalyptic number.

631549274 is a deficient number, since it is larger than the sum of its proper divisors (315774640).

631549274 is a wasteful number, since it uses less digits than its factorization.

631549274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315774639.

The product of its digits is 181440, while the sum is 41.

The square root of 631549274 is about 25130.6441222663. The cubic root of 631549274 is about 857.9640291518.

The spelling of 631549274 in words is "six hundred thirty-one million, five hundred forty-nine thousand, two hundred seventy-four".