151819122 has 96 divisors (see below), whose sum is σ = 382209408. Its totient is φ = 39356928.

The previous prime is 151819097. The next prime is 151819123. The reversal of 151819122 is 221918151.

It is a self number, because there is not a number n which added to its sum of digits gives 151819122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151819123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 518008 + ... + 518300.

It is an arithmetic number, because the mean of its divisors is an integer number (3981348).

Almost surely, 2^151819122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151819122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191104704).

151819122 is an abundant number, since it is smaller than the sum of its proper divisors (230390286).

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

151819122 is a wasteful number, since it uses less digits than its factorization.

151819122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 391 counting only the distinct ones).

The product of its digits is 1440, while the sum is 30.

The square root of 151819122 is about 12321.4902507773. The cubic root of 151819122 is about 533.4685548623.

The spelling of 151819122 in words is "one hundred fifty-one million, eight hundred nineteen thousand, one hundred twenty-two".