155141031 has 32 divisors (see below), whose sum is σ = 227681280. Its totient is φ = 93572096.

The previous prime is 155141011. The next prime is 155141053. The reversal of 155141031 is 130141551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155141031 - 2⁶ = 155140967 is a prime.

It is a super-2 number, since 2×155141031² = 48137478999485922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155140989 and 155141007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155141011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140875 + ... + 141971.

It is an arithmetic number, because the mean of its divisors is an integer number (7115040).

Almost surely, 2^155141031 is an apocalyptic number.

155141031 is a deficient number, since it is larger than the sum of its proper divisors (72540249).

155141031 is a wasteful number, since it uses less digits than its factorization.

155141031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 155141031 is about 12455.5622514602. The cubic root of 155141031 is about 537.3314052809.

Adding to 155141031 its reverse (130141551), we get a palindrome (285282582).

It can be divided in two parts, 1551410 and 31, that added together give a triangular number (1551441 = T₁₇₆₁).

The spelling of 155141031 in words is "one hundred fifty-five million, one hundred forty-one thousand, thirty-one".