164715742 has 16 divisors (see below), whose sum is σ = 258090912. Its totient is φ = 78693120.

The previous prime is 164715739. The next prime is 164715751. The reversal of 164715742 is 247517461.

It is a super-2 number, since 2×164715742² = 54262551325221128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75142 + ... + 77302.

It is an arithmetic number, because the mean of its divisors is an integer number (16130682).

Almost surely, 2^164715742 is an apocalyptic number.

164715742 is a deficient number, since it is larger than the sum of its proper divisors (93375170).

164715742 is a wasteful number, since it uses less digits than its factorization.

164715742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843.

The product of its digits is 47040, while the sum is 37.

The square root of 164715742 is about 12834.1630814011. The cubic root of 164715742 is about 548.1655044704.

The spelling of 164715742 in words is "one hundred sixty-four million, seven hundred fifteen thousand, seven hundred forty-two".