155134349 has 4 divisors (see below), whose sum is σ = 155280540. Its totient is φ = 154988160.

The previous prime is 155134321. The next prime is 155134363. The reversal of 155134349 is 943431551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943431551 = 61 ⋅15466091.

It can be written as a sum of positive squares in 2 ways, for example, as 41860900 + 113273449 = 6470^2 + 10643^2 .

It is a cyclic number.

It is not a de Polignac number, because 155134349 - 2⁸ = 155134093 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 (155134549) 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, 71492 + ... + 73629.

It is an arithmetic number, because the mean of its divisors is an integer number (38820135).

Almost surely, 2^155134349 is an apocalyptic number.

It is an amenable number.

155134349 is a deficient number, since it is larger than the sum of its proper divisors (146191).

155134349 is a wasteful number, since it uses less digits than its factorization.

155134349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146190.

The product of its digits is 32400, while the sum is 35.

The square root of 155134349 is about 12455.2940149962. The cubic root of 155134349 is about 537.3236907948.

The spelling of 155134349 in words is "one hundred fifty-five million, one hundred thirty-four thousand, three hundred forty-nine".