155034031 has 2 divisors, whose sum is σ = 155034032. Its totient is φ = 155034030.

The previous prime is 155034017. The next prime is 155034037. The reversal of 155034031 is 130430551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155034031 - 2⁷ = 155033903 is a prime.

It is a super-2 number, since 2×155034031² = 48071101536217922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155033993 and 155034011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155034037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77517015 + 77517016.

It is an arithmetic number, because the mean of its divisors is an integer number (77517016).

Almost surely, 2^155034031 is an apocalyptic number.

155034031 is a deficient number, since it is larger than the sum of its proper divisors (1).

155034031 is an equidigital number, since it uses as much as digits as its factorization.

155034031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 155034031 is about 12451.2662408287. The cubic root of 155034031 is about 537.2078452681.

Adding to 155034031 its reverse (130430551), we get a palindrome (285464582).

The spelling of 155034031 in words is "one hundred fifty-five million, thirty-four thousand, thirty-one".