139953299 has 4 divisors (see below), whose sum is σ = 148185864. Its totient is φ = 131720736.

The previous prime is 139953271. The next prime is 139953349. The reversal of 139953299 is 992359931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139953299 is a prime.

It is a super-3 number, since 3×139953299³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139953269) 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, 4116257 + ... + 4116290.

It is an arithmetic number, because the mean of its divisors is an integer number (37046466).

Almost surely, 2^139953299 is an apocalyptic number.

139953299 is a deficient number, since it is larger than the sum of its proper divisors (8232565).

139953299 is an equidigital number, since it uses as much as digits as its factorization.

139953299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232564.

The product of its digits is 590490, while the sum is 50.

The square root of 139953299 is about 11830.1859241518. The cubic root of 139953299 is about 519.1916669385.

The spelling of 139953299 in words is "one hundred thirty-nine million, nine hundred fifty-three thousand, two hundred ninety-nine".