631356104 has 8 divisors (see below), whose sum is σ = 1183792710. Its totient is φ = 315678048.

The previous prime is 631356101. The next prime is 631356119. The reversal of 631356104 is 401653136.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 397204900 + 234151204 = 19930^2 + 15302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×631356104² = 797221060116117632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (631356101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39459749 + ... + 39459764.

Almost surely, 2^631356104 is an apocalyptic number.

It is an amenable number.

631356104 is a deficient number, since it is larger than the sum of its proper divisors (552436606).

631356104 is a wasteful number, since it uses less digits than its factorization.

631356104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78919519 (or 78919515 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 631356104 is about 25126.8005126001. The cubic root of 631356104 is about 857.8765459743.

The spelling of 631356104 in words is "six hundred thirty-one million, three hundred fifty-six thousand, one hundred four".