140788313 has 4 divisors (see below), whose sum is σ = 146909568. Its totient is φ = 134667060.

The previous prime is 140788283. The next prime is 140788327. The reversal of 140788313 is 313887041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140788313 - 2⁸ = 140788057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140788343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3060593 + ... + 3060638.

It is an arithmetic number, because the mean of its divisors is an integer number (36727392).

Almost surely, 2^140788313 is an apocalyptic number.

It is an amenable number.

140788313 is a deficient number, since it is larger than the sum of its proper divisors (6121255).

140788313 is an equidigital number, since it uses as much as digits as its factorization.

140788313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121254.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 140788313 is about 11865.4251082715. The cubic root of 140788313 is about 520.2221843913. Note that the first 3 decimals are identical.

The spelling of 140788313 in words is "one hundred forty million, seven hundred eighty-eight thousand, three hundred thirteen".