15495401 has 2 divisors, whose sum is σ = 15495402. Its totient is φ = 15495400.

The previous prime is 15495377. The next prime is 15495407. The reversal of 15495401 is 10459451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9759376 + 5736025 = 3124^2 + 2395^2 .

It is an emirp because it is prime and its reverse (10459451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15495401 is a prime.

It is not a weakly prime, because it can be changed into another prime (15495407) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7747700 + 7747701.

It is an arithmetic number, because the mean of its divisors is an integer number (7747701).

Almost surely, 2^15495401 is an apocalyptic number.

It is an amenable number.

15495401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15495401 is an equidigital number, since it uses as much as digits as its factorization.

15495401 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 29.

The square root of 15495401 is about 3936.4198200903. The cubic root of 15495401 is about 249.3068854783.

The spelling of 15495401 in words is "fifteen million, four hundred ninety-five thousand, four hundred one".