140064236 has 36 divisors (see below), whose sum is σ = 267655248. Its totient is φ = 63751968.

The previous prime is 140064233. The next prime is 140064251. The reversal of 140064236 is 632460041.

140064236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×140064236³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (140064233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 838625 + ... + 838791.

It is an arithmetic number, because the mean of its divisors is an integer number (7434868).

Almost surely, 2^140064236 is an apocalyptic number.

It is an amenable number.

140064236 is a deficient number, since it is larger than the sum of its proper divisors (127591012).

140064236 is a wasteful number, since it uses less digits than its factorization.

140064236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 140064236 is about 11834.8737213373. The cubic root of 140064236 is about 519.3288135305.

The spelling of 140064236 in words is "one hundred forty million, sixty-four thousand, two hundred thirty-six".