155341031 has 4 divisors (see below), whose sum is σ = 160352064. Its totient is φ = 150330000.

The previous prime is 155341027. The next prime is 155341037. The reversal of 155341031 is 130143551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130143551 = 17 ⋅7655503.

It is a cyclic number.

It is not a de Polignac number, because 155341031 - 2² = 155341027 is a prime.

It is a super-2 number, since 2×155341031² = 48261671824285922, 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 = 155340988 and 155341006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155341037) 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, 2505470 + ... + 2505531.

It is an arithmetic number, because the mean of its divisors is an integer number (40088016).

Almost surely, 2^155341031 is an apocalyptic number.

155341031 is a deficient number, since it is larger than the sum of its proper divisors (5011033).

155341031 is an equidigital number, since it uses as much as digits as its factorization.

155341031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011032.

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

The square root of 155341031 is about 12463.5882072540. The cubic root of 155341031 is about 537.5622063212.

Adding to 155341031 its reverse (130143551), we get a palindrome (285484582).

The spelling of 155341031 in words is "one hundred fifty-five million, three hundred forty-one thousand, thirty-one".