140385299 has 4 divisors (see below), whose sum is σ = 140449440. Its totient is φ = 140321160.

The previous prime is 140385293. The next prime is 140385341. The reversal of 140385299 is 992583041.

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 140385299 - 2¹⁶ = 140319763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140385293) 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, 28667 + ... + 33204.

It is an arithmetic number, because the mean of its divisors is an integer number (35112360).

Almost surely, 2^140385299 is an apocalyptic number.

140385299 is a deficient number, since it is larger than the sum of its proper divisors (64141).

140385299 is an equidigital number, since it uses as much as digits as its factorization.

140385299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64140.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 140385299 is about 11848.4302335795. The cubic root of 140385299 is about 519.7253221425.

The spelling of 140385299 in words is "one hundred forty million, three hundred eighty-five thousand, two hundred ninety-nine".