151994880 has 200 divisors, whose sum is σ = 545140332. Its totient is φ = 40476672.

The previous prime is 151994873. The next prime is 151994897. The reversal of 151994880 is 88499151.

It can be written as a sum of positive squares in 2 ways, for example, as 142850304 + 9144576 = 11952^2 + 3024^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 206994 + ... + 207726.

Almost surely, 2^151994880 is an apocalyptic number.

151994880 is a gapful number since it is divisible by the number (10) 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 151994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272570166).

151994880 is an abundant number, since it is smaller than the sum of its proper divisors (393145452).

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

151994880 is an frugal number, since it uses more digits than its factorization.

151994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 151994880 is about 12328.6203607703. The cubic root of 151994880 is about 533.6743374769.

The spelling of 151994880 in words is "one hundred fifty-one million, nine hundred ninety-four thousand, eight hundred eighty".