164142740 has 24 divisors (see below), whose sum is σ = 344947680. Its totient is φ = 65609888.

The previous prime is 164142731. The next prime is 164142751. The reversal of 164142740 is 47241461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43031 + ... + 46689.

It is an arithmetic number, because the mean of its divisors is an integer number (14372820).

Almost surely, 2^164142740 is an apocalyptic number.

164142740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164142740 is an abundant number, since it is smaller than the sum of its proper divisors (180804940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164142740 is a wasteful number, since it uses less digits than its factorization.

164142740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911 (or 5909 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 164142740 is about 12811.8203234357. The cubic root of 164142740 is about 547.5291255886.

The spelling of 164142740 in words is "one hundred sixty-four million, one hundred forty-two thousand, seven hundred forty".