164143451 has 12 divisors (see below), whose sum is σ = 179222400. Its totient is φ = 150132528.

The previous prime is 164143439. The next prime is 164143471. The reversal of 164143451 is 154341461.

It is not a de Polignac number, because 164143451 - 2²² = 159949147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164143471) 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 11 ways as a sum of consecutive naturals, for example, 2630 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (14935200).

Almost surely, 2^164143451 is an apocalyptic number.

164143451 is a deficient number, since it is larger than the sum of its proper divisors (15078949).

164143451 is a wasteful number, since it uses less digits than its factorization.

164143451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15746 (or 15727 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 164143451 is about 12811.8480712191. The cubic root of 164143451 is about 547.5299161457.

The spelling of 164143451 in words is "one hundred sixty-four million, one hundred forty-three thousand, four hundred fifty-one".