151681122 has 24 divisors (see below), whose sum is σ = 330370560. Its totient is φ = 50294520.

The previous prime is 151681121. The next prime is 151681129. The reversal of 151681122 is 221186151.

It is not an unprimeable number, because it can be changed into a prime (151681121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18622 + ... + 25497.

It is an arithmetic number, because the mean of its divisors is an integer number (13765440).

Almost surely, 2^151681122 is an apocalyptic number.

151681122 is an abundant number, since it is smaller than the sum of its proper divisors (178689438).

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

151681122 is a wasteful number, since it uses less digits than its factorization.

151681122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44318 (or 44315 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 151681122 is about 12315.8890056707. The cubic root of 151681122 is about 533.3068690862.

It can be divided in two parts, 15168 and 1122, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 151681122 in words is "one hundred fifty-one million, six hundred eighty-one thousand, one hundred twenty-two".