151781252 has 48 divisors (see below), whose sum is σ = 313582080. Its totient is φ = 62923392.

The previous prime is 151781243. The next prime is 151781257. The reversal of 151781252 is 252187151.

It is not an unprimeable number, because it can be changed into a prime (151781257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247298 + ... + 247910.

It is an arithmetic number, because the mean of its divisors is an integer number (6532960).

Almost surely, 2^151781252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151781252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156791040).

151781252 is an abundant number, since it is smaller than the sum of its proper divisors (161800828).

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

151781252 is a wasteful number, since it uses less digits than its factorization.

151781252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its digits is 5600, while the sum is 32.

The square root of 151781252 is about 12319.9534090028. The cubic root of 151781252 is about 533.4241947626.

The spelling of 151781252 in words is "one hundred fifty-one million, seven hundred eighty-one thousand, two hundred fifty-two".