140631000064 has 33 divisors (see below), whose sum is σ = 281148656007. Its totient is φ = 70309499904.

The previous prime is 140631000023. The next prime is 140631000067. The reversal of 140631000064 is 460000136041.

The square root of 140631000064 is 375008.

It is a perfect power (a square), and thus also a powerful number.

140631000064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140631000067) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11994397 + ... + 12006115.

Almost surely, 2^140631000064 is an apocalyptic number.

140631000064 is the 375008-th square number.

It is an amenable number.

140631000064 is a deficient number, since it is larger than the sum of its proper divisors (140517655943).

140631000064 is an frugal number, since it uses more digits than its factorization.

140631000064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23458 (or 11721 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Multiplying 140631000064 by its sum of digits (25), we get a square (3515775001600 = 1875040²).

The spelling of 140631000064 in words is "one hundred forty billion, six hundred thirty-one million, sixty-four", and thus it is an aban number.