15149493941 has 4 divisors (see below), whose sum is σ = 15149760000. Its totient is φ = 15149227884.

The previous prime is 15149493901. The next prime is 15149493949. The reversal of 15149493941 is 14939494151.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14939494151 = 1321 ⋅11309231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15149493941 is a prime.

It is a super-2 number, since 2×15149493941² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15149493941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15149493949) 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, 9191 + ... + 174308.

It is an arithmetic number, because the mean of its divisors is an integer number (3787440000).

Almost surely, 2^15149493941 is an apocalyptic number.

It is an amenable number.

15149493941 is a deficient number, since it is larger than the sum of its proper divisors (266059).

15149493941 is an equidigital number, since it uses as much as digits as its factorization.

15149493941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266058.

The product of its digits is 699840, while the sum is 50.

The spelling of 15149493941 in words is "fifteen billion, one hundred forty-nine million, four hundred ninety-three thousand, nine hundred forty-one".