15512201149 has 2 divisors, whose sum is σ = 15512201150. Its totient is φ = 15512201148.

The previous prime is 15512201113. The next prime is 15512201161. The reversal of 15512201149 is 94110221551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10023613924 + 5488587225 = 100118^2 + 74085^2 .

It is a cyclic number.

It is not a de Polignac number, because 15512201149 - 2¹³ = 15512192957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15512201149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15512201249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7756100574 + 7756100575.

It is an arithmetic number, because the mean of its divisors is an integer number (7756100575).

Almost surely, 2^15512201149 is an apocalyptic number.

It is an amenable number.

15512201149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15512201149 is an equidigital number, since it uses as much as digits as its factorization.

15512201149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 15512201149 in words is "fifteen billion, five hundred twelve million, two hundred one thousand, one hundred forty-nine".