140052312 has 48 divisors (see below), whose sum is σ = 385749000. Its totient is φ = 45891456.

The previous prime is 140052299. The next prime is 140052317. The reversal of 140052312 is 213250041.

140052312 is a `hidden beast` number, since 140 + 0 + 523 + 1 + 2 = 666.

140052312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140052312² = 39229300193090688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140052317) 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 11 ways as a sum of consecutive naturals, for example, 12237 + ... + 20732.

Almost surely, 2^140052312 is an apocalyptic number.

140052312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140052312 is an abundant number, since it is smaller than the sum of its proper divisors (245696688).

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

140052312 is a wasteful number, since it uses less digits than its factorization.

140052312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33040 (or 33033 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140052312 is about 11834.3699452062. The cubic root of 140052312 is about 519.3140758819.

The spelling of 140052312 in words is "one hundred forty million, fifty-two thousand, three hundred twelve".