159231450 has 96 divisors (see below), whose sum is σ = 454970880. Its totient is φ = 36100800.

The previous prime is 159231437. The next prime is 159231491. The reversal of 159231450 is 54132951.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 145405 + ... + 146495.

It is an arithmetic number, because the mean of its divisors is an integer number (4739280).

Almost surely, 2^159231450 is an apocalyptic number.

159231450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159231450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227485440).

159231450 is an abundant number, since it is smaller than the sum of its proper divisors (295739430).

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

159231450 is a wasteful number, since it uses less digits than its factorization.

159231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 159231450 is about 12618.6944649595. The cubic root of 159231450 is about 542.0128921285.

The spelling of 159231450 in words is "one hundred fifty-nine million, two hundred thirty-one thousand, four hundred fifty".