159021954 has 240 divisors, whose sum is σ = 472747968. Its totient is φ = 39517632.

The previous prime is 159021917. The next prime is 159021979. The reversal of 159021954 is 459120951.

159021954 is a `hidden beast` number, since 1 + 590 + 2 + 19 + 54 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2373429 + ... + 2373495.

Almost surely, 2^159021954 is an apocalyptic number.

159021954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159021954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236373984).

159021954 is an abundant number, since it is smaller than the sum of its proper divisors (313726014).

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

159021954 is a wasteful number, since it uses less digits than its factorization.

159021954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 159021954 is about 12610.3907155964. The cubic root of 159021954 is about 541.7750844861.

The spelling of 159021954 in words is "one hundred fifty-nine million, twenty-one thousand, nine hundred fifty-four".