140357783 has 4 divisors (see below), whose sum is σ = 140646480. Its totient is φ = 140069088.

The previous prime is 140357771. The next prime is 140357837. The reversal of 140357783 is 387753041.

140357783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387753041 = 13 ⋅29827157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140357783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140357713) 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, 143618 + ... + 144591.

It is an arithmetic number, because the mean of its divisors is an integer number (35161620).

Almost surely, 2^140357783 is an apocalyptic number.

140357783 is a deficient number, since it is larger than the sum of its proper divisors (288697).

140357783 is an equidigital number, since it uses as much as digits as its factorization.

140357783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288696.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 140357783 is about 11847.2690101981. The cubic root of 140357783 is about 519.6913639419.

The spelling of 140357783 in words is "one hundred forty million, three hundred fifty-seven thousand, seven hundred eighty-three".