155089281 has 8 divisors (see below), whose sum is σ = 206897440. Its totient is φ = 103336992.

The previous prime is 155089279. The next prime is 155089301. The reversal of 155089281 is 182980551.

155089281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155089281 - 2¹ = 155089279 is a prime.

It is a super-2 number, since 2×155089281² = 48105370162193922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155089201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6991 + ... + 18948.

It is an arithmetic number, because the mean of its divisors is an integer number (25862180).

Almost surely, 2^155089281 is an apocalyptic number.

It is an amenable number.

155089281 is a deficient number, since it is larger than the sum of its proper divisors (51808159).

155089281 is a wasteful number, since it uses less digits than its factorization.

155089281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27935.

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 155089281 is about 12453.4846930488. The cubic root of 155089281 is about 537.2716532122.

The spelling of 155089281 in words is "one hundred fifty-five million, eighty-nine thousand, two hundred eighty-one".