162645730 has 16 divisors (see below), whose sum is σ = 315282744. Its totient is φ = 60053760.

The previous prime is 162645697. The next prime is 162645733. The reversal of 162645730 is 37546261.

It is a happy number.

162645730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 113827561 + 48818169 = 10669^2 + 6987^2 .

It is not an unprimeable number, because it can be changed into a prime (162645733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625431 + ... + 625690.

Almost surely, 2^162645730 is an apocalyptic number.

162645730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162645730 is a deficient number, since it is larger than the sum of its proper divisors (152637014).

162645730 is a wasteful number, since it uses less digits than its factorization.

162645730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251141.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 162645730 is about 12753.2635039036. The cubic root of 162645730 is about 545.8595196470.

The spelling of 162645730 in words is "one hundred sixty-two million, six hundred forty-five thousand, seven hundred thirty".