164212450 has 24 divisors (see below), whose sum is σ = 306587520. Its totient is φ = 65437200.

The previous prime is 164212379. The next prime is 164212457. The reversal of 164212450 is 54212461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (164212457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7491 + ... + 19609.

It is an arithmetic number, because the mean of its divisors is an integer number (12774480).

Almost surely, 2^164212450 is an apocalyptic number.

164212450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164212450 is a deficient number, since it is larger than the sum of its proper divisors (142375070).

164212450 is a wasteful number, since it uses less digits than its factorization.

164212450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402 (or 12397 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 164212450 is about 12814.5405692128. The cubic root of 164212450 is about 547.6066249110.

The spelling of 164212450 in words is "one hundred sixty-four million, two hundred twelve thousand, four hundred fifty".