164742454 has 8 divisors (see below), whose sum is σ = 247219920. Its totient is φ = 82335816.

The previous prime is 164742451. The next prime is 164742493. The reversal of 164742454 is 454247461.

164742454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×164742454² = 54280152299884232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164742451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11449 + ... + 21460.

It is an arithmetic number, because the mean of its divisors is an integer number (30902490).

Almost surely, 2^164742454 is an apocalyptic number.

164742454 is a deficient number, since it is larger than the sum of its proper divisors (82477466).

164742454 is a wasteful number, since it uses less digits than its factorization.

164742454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35414.

The product of its digits is 107520, while the sum is 37.

The square root of 164742454 is about 12835.2036992017. The cubic root of 164742454 is about 548.1951349221.

The spelling of 164742454 in words is "one hundred sixty-four million, seven hundred forty-two thousand, four hundred fifty-four".