155130305431 has 8 divisors (see below), whose sum is σ = 162524578304. Its totient is φ = 147885411960.

The previous prime is 155130305359. The next prime is 155130305441. The reversal of 155130305431 is 134503031551.

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

It is not a de Polignac number, because 155130305431 - 2¹⁷ = 155130174359 is a prime.

It is a super-2 number, since 2×155130305431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155130305393 and 155130305402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155130305441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37342725 + ... + 37346878.

It is an arithmetic number, because the mean of its divisors is an integer number (20315572288).

Almost surely, 2^155130305431 is an apocalyptic number.

155130305431 is a deficient number, since it is larger than the sum of its proper divisors (7394272873).

155130305431 is an equidigital number, since it uses as much as digits as its factorization.

155130305431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74689701.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 155130305431 its reverse (134503031551), we get a palindrome (289633336982).

The spelling of 155130305431 in words is "one hundred fifty-five billion, one hundred thirty million, three hundred five thousand, four hundred thirty-one".