153997280 has 96 divisors (see below), whose sum is σ = 386467200. Its totient is φ = 57825792.

The previous prime is 153997241. The next prime is 153997301. The reversal of 153997280 is 82799351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544019 + ... + 544301.

It is an arithmetic number, because the mean of its divisors is an integer number (4025700).

Almost surely, 2^153997280 is an apocalyptic number.

153997280 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 153997280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193233600).

153997280 is an abundant number, since it is smaller than the sum of its proper divisors (232469920).

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

153997280 is a wasteful number, since it uses less digits than its factorization.

153997280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 153997280 is about 12409.5640535838. The cubic root of 153997280 is about 536.0076853431.

The spelling of 153997280 in words is "one hundred fifty-three million, nine hundred ninety-seven thousand, two hundred eighty".