151187868 has 144 divisors (see below), whose sum is σ = 450567936. Its totient is φ = 42301440.

The previous prime is 151187843. The next prime is 151187873. The reversal of 151187868 is 868781151.

151187868 is a `hidden beast` number, since 1 + 511 + 8 + 78 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246330 + ... + 246942.

It is an arithmetic number, because the mean of its divisors is an integer number (3128944).

Almost surely, 2^151187868 is an apocalyptic number.

151187868 is a gapful number since it is divisible by the number (18) 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 151187868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225283968).

151187868 is an abundant number, since it is smaller than the sum of its proper divisors (299380068).

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

151187868 is a wasteful number, since it uses less digits than its factorization.

151187868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 679 counting only the distinct ones).

The product of its digits is 107520, while the sum is 45.

The square root of 151187868 is about 12295.8475917685. The cubic root of 151187868 is about 532.7281519193.

The spelling of 151187868 in words is "one hundred fifty-one million, one hundred eighty-seven thousand, eight hundred sixty-eight".