155134031 has 16 divisors (see below), whose sum is σ = 177861600. Its totient is φ = 134120448.

The previous prime is 155134019. The next prime is 155134033. The reversal of 155134031 is 130431551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155134031 is a prime.

It is a super-2 number, since 2×155134031² = 48133135148617922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155133988 and 155134006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155134033) 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, 18455 + ... + 25511.

It is an arithmetic number, because the mean of its divisors is an integer number (11116350).

Almost surely, 2^155134031 is an apocalyptic number.

155134031 is a deficient number, since it is larger than the sum of its proper divisors (22727569).

155134031 is a wasteful number, since it uses less digits than its factorization.

155134031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 155134031 is about 12455.2812493336. The cubic root of 155134031 is about 537.3233236527.

Adding to 155134031 its reverse (130431551), we get a palindrome (285565582).

The spelling of 155134031 in words is "one hundred fifty-five million, one hundred thirty-four thousand, thirty-one".