260155149 has 4 divisors (see below), whose sum is σ = 346873536. Its totient is φ = 173436764.

The previous prime is 260155141. The next prime is 260155153. The reversal of 260155149 is 941551062.

260155149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260155149 - 2³ = 260155141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260155141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43359189 + ... + 43359194.

It is an arithmetic number, because the mean of its divisors is an integer number (86718384).

Almost surely, 2^260155149 is an apocalyptic number.

It is an amenable number.

260155149 is a deficient number, since it is larger than the sum of its proper divisors (86718387).

260155149 is an equidigital number, since it uses as much as digits as its factorization.

260155149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86718386.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 260155149 is about 16129.3257453621. The cubic root of 260155149 is about 638.3773583805.

The spelling of 260155149 in words is "two hundred sixty million, one hundred fifty-five thousand, one hundred forty-nine".