15995461 has 2 divisors, whose sum is σ = 15995462. Its totient is φ = 15995460.

The previous prime is 15995429. The next prime is 15995491. The reversal of 15995461 is 16459951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8673025 + 7322436 = 2945^2 + 2706^2 .

It is an emirp because it is prime and its reverse (16459951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15995461 - 2⁵ = 15995429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15995491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7997730 + 7997731.

It is an arithmetic number, because the mean of its divisors is an integer number (7997731).

Almost surely, 2^15995461 is an apocalyptic number.

It is an amenable number.

15995461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15995461 is an equidigital number, since it uses as much as digits as its factorization.

15995461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 40.

The square root of 15995461 is about 3999.4325847550. The cubic root of 15995461 is about 251.9603794685.

Adding to 15995461 its product of digits (48600), we get a palindrome (16044061).

The spelling of 15995461 in words is "fifteen million, nine hundred ninety-five thousand, four hundred sixty-one".