140855393 has 4 divisors (see below), whose sum is σ = 160977600. Its totient is φ = 120733188.

The previous prime is 140855383. The next prime is 140855419. The reversal of 140855393 is 393558041.

It is a happy number.

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 140855393 - 2²⁰ = 139806817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140855383) 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, 10061093 + ... + 10061106.

It is an arithmetic number, because the mean of its divisors is an integer number (40244400).

Almost surely, 2^140855393 is an apocalyptic number.

It is an amenable number.

140855393 is a deficient number, since it is larger than the sum of its proper divisors (20122207).

140855393 is an equidigital number, since it uses as much as digits as its factorization.

140855393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20122206.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 140855393 is about 11868.2514718892. The cubic root of 140855393 is about 520.3047929606.

The spelling of 140855393 in words is "one hundred forty million, eight hundred fifty-five thousand, three hundred ninety-three".