164977419 has 8 divisors (see below), whose sum is σ = 221446800. Its totient is φ = 109246496.

The previous prime is 164977387. The next prime is 164977441. The reversal of 164977419 is 914779461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164977419 - 2⁵ = 164977387 is a prime.

It is a super-2 number, since 2×164977419² = 54435097559803122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164977619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184092 + ... + 184985.

It is an arithmetic number, because the mean of its divisors is an integer number (27680850).

Almost surely, 2^164977419 is an apocalyptic number.

164977419 is a deficient number, since it is larger than the sum of its proper divisors (56469381).

164977419 is a wasteful number, since it uses less digits than its factorization.

164977419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369229.

The product of its digits is 381024, while the sum is 48.

The square root of 164977419 is about 12844.3535843576. The cubic root of 164977419 is about 548.4556334115.

The spelling of 164977419 in words is "one hundred sixty-four million, nine hundred seventy-seven thousand, four hundred nineteen".