140345312 has 12 divisors (see below), whose sum is σ = 276304896. Its totient is φ = 70172640.

The previous prime is 140345263. The next prime is 140345321. The reversal of 140345312 is 213543041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2192864 + ... + 2192927.

It is an arithmetic number, because the mean of its divisors is an integer number (23025408).

Almost surely, 2^140345312 is an apocalyptic number.

It is an amenable number.

140345312 is a deficient number, since it is larger than the sum of its proper divisors (135959584).

140345312 is an equidigital number, since it uses as much as digits as its factorization.

140345312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385801 (or 4385793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140345312 is about 11846.7426746764. The cubic root of 140345312 is about 519.6759716998.

Adding to 140345312 its reverse (213543041), we get a palindrome (353888353).

The spelling of 140345312 in words is "one hundred forty million, three hundred forty-five thousand, three hundred twelve".