155427311 has 16 divisors (see below), whose sum is σ = 178264800. Its totient is φ = 134243328.

The previous prime is 155427281. The next prime is 155427341. The reversal of 155427311 is 113724551.

It is an interprime number because it is at equal distance from previous prime (155427281) and next prime (155427341).

It is a cyclic number.

It is not a de Polignac number, because 155427311 - 2⁶ = 155427247 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 (155427341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37595 + ... + 41523.

It is an arithmetic number, because the mean of its divisors is an integer number (11141550).

Almost surely, 2^155427311 is an apocalyptic number.

155427311 is a deficient number, since it is larger than the sum of its proper divisors (22837489).

155427311 is a wasteful number, since it uses less digits than its factorization.

155427311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138.

The product of its digits is 4200, while the sum is 29.

The square root of 155427311 is about 12467.0490092884. The cubic root of 155427311 is about 537.6617127266.

The spelling of 155427311 in words is "one hundred fifty-five million, four hundred twenty-seven thousand, three hundred eleven".