151995844 has 216 divisors, whose sum is σ = 401186520. Its totient is φ = 49674240.

The previous prime is 151995803. The next prime is 151995863. The reversal of 151995844 is 448599151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18593344 + 133402500 = 4312^2 + 11550^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151995794 and 151995803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5241222 + ... + 5241250.

It is an arithmetic number, because the mean of its divisors is an integer number (1857345).

Almost surely, 2^151995844 is an apocalyptic number.

151995844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151995844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200593260).

151995844 is an abundant number, since it is smaller than the sum of its proper divisors (249190676).

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

151995844 is a wasteful number, since it uses less digits than its factorization.

151995844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 79 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 151995844 is about 12328.6594567293. The cubic root of 151995844 is about 533.6754657188.

The spelling of 151995844 in words is "one hundred fifty-one million, nine hundred ninety-five thousand, eight hundred forty-four".