155034400031 has 8 divisors (see below), whose sum is σ = 178355564544. Its totient is φ = 132006583800.

The previous prime is 155034400019. The next prime is 155034400043. The reversal of 155034400031 is 130004430551.

It is an interprime number because it is at equal distance from previous prime (155034400019) and next prime (155034400043).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155034400031 - 2⁶ = 155034399967 is a prime.

It is a super-3 number, since 3×155034400031³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155034402031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73335935 + ... + 73338048.

It is an arithmetic number, because the mean of its divisors is an integer number (22294445568).

Almost surely, 2^155034400031 is an apocalyptic number.

155034400031 is a deficient number, since it is larger than the sum of its proper divisors (23321164513).

155034400031 is a wasteful number, since it uses less digits than its factorization.

155034400031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146674141.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 155034400031 its reverse (130004430551), we get a palindrome (285038830582).

The spelling of 155034400031 in words is "one hundred fifty-five billion, thirty-four million, four hundred thousand, thirty-one".