155481065 has 16 divisors (see below), whose sum is σ = 201285648. Its totient is φ = 114855936.

The previous prime is 155481059. The next prime is 155481083. The reversal of 155481065 is 560184551.

It is a happy number.

155481065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 24790441 + 130690624 = 4979^2 + 11432^2 .

It is a cyclic number.

It is not a de Polignac number, because 155481065 - 2¹⁶ = 155415529 is a prime.

It is a Duffinian 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, 12752 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (12580353).

Almost surely, 2^155481065 is an apocalyptic number.

It is an amenable number.

155481065 is a deficient number, since it is larger than the sum of its proper divisors (45804583).

155481065 is a wasteful number, since it uses less digits than its factorization.

155481065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34588.

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 155481065 is about 12469.2046658959. The cubic root of 155481065 is about 537.7236883994.

The spelling of 155481065 in words is "one hundred fifty-five million, four hundred eighty-one thousand, sixty-five".