161415113 has 2 divisors, whose sum is σ = 161415114. Its totient is φ = 161415112.

The previous prime is 161415101. The next prime is 161415167. The reversal of 161415113 is 311514161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159693769 + 1721344 = 12637^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 161415113 - 2²⁰ = 160366537 is a prime.

It is not a weakly prime, because it can be changed into another prime (161415313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80707556 + 80707557.

It is an arithmetic number, because the mean of its divisors is an integer number (80707557).

Almost surely, 2^161415113 is an apocalyptic number.

It is an amenable number.

161415113 is a deficient number, since it is larger than the sum of its proper divisors (1).

161415113 is an equidigital number, since it uses as much as digits as its factorization.

161415113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

The square root of 161415113 is about 12704.9247538110. The cubic root of 161415113 is about 544.4793310315.

Adding to 161415113 its reverse (311514161), we get a palindrome (472929274).

The spelling of 161415113 in words is "one hundred sixty-one million, four hundred fifteen thousand, one hundred thirteen".