191413369 has 16 divisors (see below), whose sum is σ = 230584320. Its totient is φ = 155413440.

The previous prime is 191413367. The next prime is 191413381. The reversal of 191413369 is 963314191.

It is not a de Polignac number, because 191413369 - 2¹ = 191413367 is a prime.

It is a super-2 number, since 2×191413369² = 73278155663860322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191413363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864 + ... + 19654.

It is an arithmetic number, because the mean of its divisors is an integer number (14411520).

Almost surely, 2^191413369 is an apocalyptic number.

It is an amenable number.

191413369 is a deficient number, since it is larger than the sum of its proper divisors (39170951).

191413369 is a wasteful number, since it uses less digits than its factorization.

191413369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17880.

The product of its digits is 17496, while the sum is 37.

The square root of 191413369 is about 13835.2220437548. Note that the first 3 decimals coincide. The cubic root of 191413369 is about 576.3116812777.

The spelling of 191413369 in words is "one hundred ninety-one million, four hundred thirteen thousand, three hundred sixty-nine".