15140421299 has 4 divisors (see below), whose sum is σ = 15157115064. Its totient is φ = 15123727536.

The previous prime is 15140421271. The next prime is 15140421313. The reversal of 15140421299 is 99212404151.

It is a happy number.

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-15140421299 is a prime.

It is a super-2 number, since 2×15140421299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15140421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8345522 + ... + 8347335.

It is an arithmetic number, because the mean of its divisors is an integer number (3789278766).

Almost surely, 2^15140421299 is an apocalyptic number.

15140421299 is a deficient number, since it is larger than the sum of its proper divisors (16693765).

15140421299 is an equidigital number, since it uses as much as digits as its factorization.

15140421299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16693764.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 15140421299 in words is "fifteen billion, one hundred forty million, four hundred twenty-one thousand, two hundred ninety-nine".