136669419 has 24 divisors (see below), whose sum is σ = 200210400. Its totient is φ = 89831808.

The previous prime is 136669417. The next prime is 136669433. The reversal of 136669419 is 914966631.

It is not a de Polignac number, because 136669419 - 2¹ = 136669417 is a prime.

It is a super-2 number, since 2×136669419² = 37357060179595122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136669417) by changing a digit.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245089 + ... + 245645.

It is an arithmetic number, because the mean of its divisors is an integer number (8342100).

Almost surely, 2^136669419 is an apocalyptic number.

136669419 is a deficient number, since it is larger than the sum of its proper divisors (63540981).

136669419 is a wasteful number, since it uses less digits than its factorization.

136669419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 896 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 136669419 is about 11690.5696610559. The cubic root of 136669419 is about 515.0986947557.

The spelling of 136669419 in words is "one hundred thirty-six million, six hundred sixty-nine thousand, four hundred nineteen".