152780285 has 24 divisors (see below), whose sum is σ = 216297216. Its totient is φ = 103276320.

The previous prime is 152780281. The next prime is 152780293. The reversal of 152780285 is 582087251.

It is a happy number.

It is not a de Polignac number, because 152780285 - 2² = 152780281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152780281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13004 + ... + 21786.

It is an arithmetic number, because the mean of its divisors is an integer number (9012384).

Almost surely, 2^152780285 is an apocalyptic number.

It is an amenable number.

152780285 is a deficient number, since it is larger than the sum of its proper divisors (63516931).

152780285 is an equidigital number, since it uses as much as digits as its factorization.

152780285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873 (or 8866 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 152780285 is about 12360.4322335426. The cubic root of 152780285 is about 534.5919793474.

The spelling of 152780285 in words is "one hundred fifty-two million, seven hundred eighty thousand, two hundred eighty-five".