140626064 has 30 divisors (see below), whose sum is σ = 279712566. Its totient is φ = 68449920.

The previous prime is 140626063. The next prime is 140626067. The reversal of 140626064 is 460626041.

140626064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 85747600 + 54878464 = 9260^2 + 7408^2 .

It is a super-2 number, since 2×140626064² = 39551379752264192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140626063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303497 + ... + 303959.

Almost surely, 2^140626064 is an apocalyptic number.

It is an amenable number.

140626064 is a deficient number, since it is larger than the sum of its proper divisors (139086502).

140626064 is an frugal number, since it uses more digits than its factorization.

140626064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140626064 is about 11858.5860877256. The cubic root of 140626064 is about 520.0222672910.

The spelling of 140626064 in words is "one hundred forty million, six hundred twenty-six thousand, sixty-four".