164154442 has 8 divisors (see below), whose sum is σ = 254722500. Its totient is φ = 79246944.

The previous prime is 164154439. The next prime is 164154451. The reversal of 164154442 is 244451461.

It can be written as a sum of positive squares in 2 ways, for example, as 152992161 + 11162281 = 12369^2 + 3341^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415067 + ... + 1415182.

Almost surely, 2^164154442 is an apocalyptic number.

164154442 is a deficient number, since it is larger than the sum of its proper divisors (90568058).

164154442 is a wasteful number, since it uses less digits than its factorization.

164154442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830280.

The product of its digits is 15360, while the sum is 31.

The square root of 164154442 is about 12812.2770029375. The cubic root of 164154442 is about 547.5421366901.

The spelling of 164154442 in words is "one hundred sixty-four million, one hundred fifty-four thousand, four hundred forty-two".