140740739 has 4 divisors (see below), whose sum is σ = 149019624. Its totient is φ = 132461856.

The previous prime is 140740727. The next prime is 140740757. The reversal of 140740739 is 937047041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140740739 - 2⁴ = 140740723 is a prime.

It is a super-2 number, since 2×140740739² = 39615911228532242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140740699 and 140740708.

It is not an unprimeable number, because it can be changed into a prime (140740759) 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, 4139417 + ... + 4139450.

It is an arithmetic number, because the mean of its divisors is an integer number (37254906).

Almost surely, 2^140740739 is an apocalyptic number.

140740739 is a deficient number, since it is larger than the sum of its proper divisors (8278885).

140740739 is an equidigital number, since it uses as much as digits as its factorization.

140740739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278884.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 140740739 is about 11863.4202066689. The cubic root of 140740739 is about 520.1635814248.

The spelling of 140740739 in words is "one hundred forty million, seven hundred forty thousand, seven hundred thirty-nine".