151659540 has 120 divisors (see below), whose sum is σ = 479334240. Its totient is φ = 40139712.

The previous prime is 151659527. The next prime is 151659551. The reversal of 151659540 is 45956151.

151659540 is a `hidden beast` number, since 1 + 51 + 65 + 9 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 151659495 and 151659504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 289719 + ... + 290241.

It is an arithmetic number, because the mean of its divisors is an integer number (3994452).

Almost surely, 2^151659540 is an apocalyptic number.

151659540 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 151659540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239667120).

151659540 is an abundant number, since it is smaller than the sum of its proper divisors (327674700).

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

151659540 is a wasteful number, since it uses less digits than its factorization.

151659540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 151659540 is about 12315.0127892747. The cubic root of 151659540 is about 533.2815739700.

The spelling of 151659540 in words is "one hundred fifty-one million, six hundred fifty-nine thousand, five hundred forty".