15052181 has 2 divisors, whose sum is σ = 15052182. Its totient is φ = 15052180.

The previous prime is 15052151. The next prime is 15052187. The reversal of 15052181 is 18125051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8213956 + 6838225 = 2866^2 + 2615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15052181 is a prime.

It is a super-2 number, since 2×15052181² = 453136305713522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15052187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7526090 + 7526091.

It is an arithmetic number, because the mean of its divisors is an integer number (7526091).

Almost surely, 2^15052181 is an apocalyptic number.

It is an amenable number.

15052181 is a deficient number, since it is larger than the sum of its proper divisors (1).

15052181 is an equidigital number, since it uses as much as digits as its factorization.

15052181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 15052181 is about 3879.7140358537. The cubic root of 15052181 is about 246.9068529322.

The spelling of 15052181 in words is "fifteen million, fifty-two thousand, one hundred eighty-one".