15772049 has 4 divisors (see below), whose sum is σ = 15780336. Its totient is φ = 15763764.

The previous prime is 15772037. The next prime is 15772061. The reversal of 15772049 is 94027751.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94027751 = 19 ⋅4948829.

It is an interprime number because it is at equal distance from previous prime (15772037) and next prime (15772061).

It is a cyclic number.

It is not a de Polignac number, because 15772049 - 2¹⁶ = 15706513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15772019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 5624.

It is an arithmetic number, because the mean of its divisors is an integer number (3945084).

Almost surely, 2^15772049 is an apocalyptic number.

It is an amenable number.

15772049 is a deficient number, since it is larger than the sum of its proper divisors (8287).

15772049 is an equidigital number, since it uses as much as digits as its factorization.

15772049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 15772049 is about 3971.4039079399. The cubic root of 15772049 is about 250.7818138531.

The spelling of 15772049 in words is "fifteen million, seven hundred seventy-two thousand, forty-nine".