15906361 has 2 divisors, whose sum is σ = 15906362. Its totient is φ = 15906360.

The previous prime is 15906353. The next prime is 15906377. The reversal of 15906361 is 16360951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14100025 + 1806336 = 3755^2 + 1344^2 .

It is a cyclic number.

It is not a de Polignac number, because 15906361 - 2³ = 15906353 is a prime.

It is not a weakly prime, because it can be changed into another prime (15906301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7953180 + 7953181.

It is an arithmetic number, because the mean of its divisors is an integer number (7953181).

Almost surely, 2^15906361 is an apocalyptic number.

It is an amenable number.

15906361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15906361 is an equidigital number, since it uses as much as digits as its factorization.

15906361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 15906361 is about 3988.2779491906. The cubic root of 15906361 is about 251.4916739336.

The spelling of 15906361 in words is "fifteen million, nine hundred six thousand, three hundred sixty-one".