15474961 has 2 divisors, whose sum is σ = 15474962. Its totient is φ = 15474960.

The previous prime is 15474959. The next prime is 15474971. The reversal of 15474961 is 16947451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10497600 + 4977361 = 3240^2 + 2231^2 .

It is an emirp because it is prime and its reverse (16947451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15474961 - 2¹ = 15474959 is a prime.

Together with 15474959, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 15474961.

It is not a weakly prime, because it can be changed into another prime (15474931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7737480 + 7737481.

It is an arithmetic number, because the mean of its divisors is an integer number (7737481).

Almost surely, 2^15474961 is an apocalyptic number.

It is an amenable number.

15474961 is a deficient number, since it is larger than the sum of its proper divisors (1).

15474961 is an equidigital number, since it uses as much as digits as its factorization.

15474961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 15474961 is about 3933.8226955469. The cubic root of 15474961 is about 249.1972169165.

The spelling of 15474961 in words is "fifteen million, four hundred seventy-four thousand, nine hundred sixty-one".