162551412 has 18 divisors (see below), whose sum is σ = 410893938. Its totient is φ = 54183792.

The previous prime is 162551387. The next prime is 162551413. The reversal of 162551412 is 214155261.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 62631396 = 9996^2 + 7914^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162551413) 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 5 ways as a sum of consecutive naturals, for example, 2257623 + ... + 2257694.

It is an arithmetic number, because the mean of its divisors is an integer number (22827441).

Almost surely, 2^162551412 is an apocalyptic number.

162551412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

162551412 is an abundant number, since it is smaller than the sum of its proper divisors (248342526).

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

162551412 is a wasteful number, since it uses less digits than its factorization.

162551412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515327 (or 4515322 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 162551412 is about 12749.5651690558. The cubic root of 162551412 is about 545.7539848890.

The spelling of 162551412 in words is "one hundred sixty-two million, five hundred fifty-one thousand, four hundred twelve".