1516369 has 2 divisors, whose sum is σ = 1516370. Its totient is φ = 1516368.

The previous prime is 1516363. The next prime is 1516391. The reversal of 1516369 is 9636151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976144 + 540225 = 988^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516369 - 2⁵ = 1516337 is a prime.

It is a super-2 number, since 2×1516369² = 4598749888322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1516369.

It is not a weakly prime, because it can be changed into another prime (1516363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758184 + 758185.

It is an arithmetic number, because the mean of its divisors is an integer number (758185).

2^1516369 is an apocalyptic number.

It is an amenable number.

1516369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516369 is an equidigital number, since it uses as much as digits as its factorization.

1516369 is an evil number, because the sum of its binary digits is even.

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

The square root of 1516369 is about 1231.4093551699. The cubic root of 1516369 is about 114.8863148729.

It can be divided in two parts, 15 and 16369, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 1516369 in words is "one million, five hundred sixteen thousand, three hundred sixty-nine".