15730157149 has 4 divisors (see below), whose sum is σ = 17977322464. Its totient is φ = 13482991836.

The previous prime is 15730157143. The next prime is 15730157153. The reversal of 15730157149 is 94175103751.

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: 94175103751 = 431 ⋅218503721.

It is a cyclic number.

It is not a de Polignac number, because 15730157149 - 2⁵ = 15730157117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15730157143) 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, 1123582647 + ... + 1123582660.

It is an arithmetic number, because the mean of its divisors is an integer number (4494330616).

Almost surely, 2^15730157149 is an apocalyptic number.

It is an amenable number.

15730157149 is a deficient number, since it is larger than the sum of its proper divisors (2247165315).

15730157149 is an equidigital number, since it uses as much as digits as its factorization.

15730157149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247165314.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 15730157149 in words is "fifteen billion, seven hundred thirty million, one hundred fifty-seven thousand, one hundred forty-nine".