1631241064 has 32 divisors (see below), whose sum is σ = 3106557000. Its totient is φ = 802870272.

The previous prime is 1631241061. The next prime is 1631241083. The reversal of 1631241064 is 4601421361.

It can be written as a sum of positive squares in 4 ways, for example, as 1571488164 + 59752900 = 39642^2 + 7730^2 .

It is not an unprimeable number, because it can be changed into a prime (1631241061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329842 + ... + 334750.

Almost surely, 2^1631241064 is an apocalyptic number.

It is an amenable number.

1631241064 is a deficient number, since it is larger than the sum of its proper divisors (1475315936).

1631241064 is a wasteful number, since it uses less digits than its factorization.

1631241064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557 (or 5553 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1631241064 is about 40388.6254284545. The cubic root of 1631241064 is about 1177.1705318880.

The spelling of 1631241064 in words is "one billion, six hundred thirty-one million, two hundred forty-one thousand, sixty-four".