68122152 has 72 divisors (see below), whose sum is σ = 214630650. Its totient is φ = 19462464.

The previous prime is 68122151. The next prime is 68122181. The reversal of 68122152 is 25122186.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 2414916 = 8106^2 + 1554^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×68122152² = 9281255186222208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68122151) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6127 + ... + 13182.

Almost surely, 2^68122152 is an apocalyptic number.

It is an amenable number.

68122152 is an abundant number, since it is smaller than the sum of its proper divisors (146508498).

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

68122152 is a wasteful number, since it uses less digits than its factorization.

68122152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19335 (or 19321 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 68122152 is about 8253.6144809411. The cubic root of 68122152 is about 408.4097670978.

The spelling of 68122152 in words is "sixty-eight million, one hundred twenty-two thousand, one hundred fifty-two".