15119930249 has 4 divisors (see below), whose sum is σ = 15367798020. Its totient is φ = 14872062480.

The previous prime is 15119930201. The next prime is 15119930281. The reversal of 15119930249 is 94203991151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 164352400 + 14955577849 = 12820^2 + 122293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15119930249 is a prime.

It is a super-2 number, since 2×15119930249² (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 (15119930149) 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, 123933794 + ... + 123933915.

It is an arithmetic number, because the mean of its divisors is an integer number (3841949505).

Almost surely, 2^15119930249 is an apocalyptic number.

It is an amenable number.

15119930249 is a deficient number, since it is larger than the sum of its proper divisors (247867771).

15119930249 is an equidigital number, since it uses as much as digits as its factorization.

15119930249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247867770.

The product of its (nonzero) digits is 87480, while the sum is 44.

The spelling of 15119930249 in words is "fifteen billion, one hundred nineteen million, nine hundred thirty thousand, two hundred forty-nine".