164253554 has 4 divisors (see below), whose sum is σ = 246380334. Its totient is φ = 82126776.

The previous prime is 164253539. The next prime is 164253559. The reversal of 164253554 is 455352461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94614529 + 69639025 = 9727^2 + 8345^2 .

It is not an unprimeable number, because it can be changed into a prime (164253559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41063387 + ... + 41063390.

Almost surely, 2^164253554 is an apocalyptic number.

164253554 is a deficient number, since it is larger than the sum of its proper divisors (82126780).

164253554 is an equidigital number, since it uses as much as digits as its factorization.

164253554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82126779.

The product of its digits is 72000, while the sum is 35.

The square root of 164253554 is about 12816.1442719720. The cubic root of 164253554 is about 547.6523115503.

The spelling of 164253554 in words is "one hundred sixty-four million, two hundred fifty-three thousand, five hundred fifty-four".