155283149 has 8 divisors (see below), whose sum is σ = 177719040. Its totient is φ = 132910416.

The previous prime is 155283133. The next prime is 155283187. The reversal of 155283149 is 941382551.

It is a happy number.

155283149 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 a cyclic number.

It is not a de Polignac number, because 155283149 - 2⁴ = 155283133 is a prime.

It is a super-2 number, since 2×155283149² = 48225712726712402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155283749) 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, 10394 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (22214880).

Almost surely, 2^155283149 is an apocalyptic number.

It is an amenable number.

155283149 is a deficient number, since it is larger than the sum of its proper divisors (22435891).

155283149 is an equidigital number, since it uses as much as digits as its factorization.

155283149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31579.

The product of its digits is 43200, while the sum is 38.

The square root of 155283149 is about 12461.2659469253. The cubic root of 155283149 is about 537.4954305723.

The spelling of 155283149 in words is "one hundred fifty-five million, two hundred eighty-three thousand, one hundred forty-nine".