162649123 has 16 divisors (see below), whose sum is σ = 208889856. Its totient is φ = 123092640.

The previous prime is 162649117. The next prime is 162649147. The reversal of 162649123 is 321946261.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162649123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162649163) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36763 + ... + 40948.

It is an arithmetic number, because the mean of its divisors is an integer number (13055616).

Almost surely, 2^162649123 is an apocalyptic number.

162649123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

162649123 is a deficient number, since it is larger than the sum of its proper divisors (46240733).

162649123 is a wasteful number, since it uses less digits than its factorization.

162649123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77754.

The product of its digits is 15552, while the sum is 34.

The square root of 162649123 is about 12753.3965279842. The cubic root of 162649123 is about 545.8633153988.

The spelling of 162649123 in words is "one hundred sixty-two million, six hundred forty-nine thousand, one hundred twenty-three".