15441157 has 2 divisors, whose sum is σ = 15441158. Its totient is φ = 15441156.

The previous prime is 15441149. The next prime is 15441161. The reversal of 15441157 is 75114451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10201636 + 5239521 = 3194^2 + 2289^2 .

It is an emirp because it is prime and its reverse (75114451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15441157 - 2³ = 15441149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15441187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7720578 + 7720579.

It is an arithmetic number, because the mean of its divisors is an integer number (7720579).

Almost surely, 2^15441157 is an apocalyptic number.

It is an amenable number.

15441157 is a deficient number, since it is larger than the sum of its proper divisors (1).

15441157 is an equidigital number, since it uses as much as digits as its factorization.

15441157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2800, while the sum is 28.

The square root of 15441157 is about 3929.5237624934. The cubic root of 15441157 is about 249.0156331749.

It can be divided in two parts, 1544 and 1157, that added together give a triangular number (2701 = T₇₃).

The spelling of 15441157 in words is "fifteen million, four hundred forty-one thousand, one hundred fifty-seven".