140631064 has 16 divisors (see below), whose sum is σ = 301352400. Its totient is φ = 60270432.

The previous prime is 140631061. The next prime is 140631067. The reversal of 140631064 is 460136041.

It is an interprime number because it is at equal distance from previous prime (140631061) and next prime (140631067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140631061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255579 + ... + 1255690.

It is an arithmetic number, because the mean of its divisors is an integer number (18834525).

Almost surely, 2^140631064 is an apocalyptic number.

140631064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140631064 is an abundant number, since it is smaller than the sum of its proper divisors (160721336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140631064 is a wasteful number, since it uses less digits than its factorization.

140631064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511282 (or 2511278 counting only the distinct ones).

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

The square root of 140631064 is about 11858.7969035649. The cubic root of 140631064 is about 520.0284303982.

The spelling of 140631064 in words is "one hundred forty million, six hundred thirty-one thousand, sixty-four".