545311251431 has 8 divisors (see below), whose sum is σ = 557885431584. Its totient is φ = 532873008640.

The previous prime is 545311251427. The next prime is 545311251449. The reversal of 545311251431 is 134152113545.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 545311251431 - 2² = 545311251427 is a prime.

It is a super-2 number, since 2×545311251431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545311251391 and 545311251400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545311259431) 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, 33976226 + ... + 33992271.

It is an arithmetic number, because the mean of its divisors is an integer number (69735678948).

Almost surely, 2^545311251431 is an apocalyptic number.

545311251431 is a deficient number, since it is larger than the sum of its proper divisors (12574180153).

545311251431 is a wasteful number, since it uses less digits than its factorization.

545311251431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67968681.

The product of its digits is 36000, while the sum is 35.

Adding to 545311251431 its reverse (134152113545), we get a palindrome (679463364976).

The spelling of 545311251431 in words is "five hundred forty-five billion, three hundred eleven million, two hundred fifty-one thousand, four hundred thirty-one".