5145343421 has 8 divisors (see below), whose sum is σ = 5271787584. Its totient is φ = 5018944480.

The previous prime is 5145343417. The next prime is 5145343439. The reversal of 5145343421 is 1243435415.

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

It is not a de Polignac number, because 5145343421 - 2² = 5145343417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145343481) 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, 400520 + ... + 413166.

It is an arithmetic number, because the mean of its divisors is an integer number (658973448).

Almost surely, 2^5145343421 is an apocalyptic number.

It is an amenable number.

5145343421 is a deficient number, since it is larger than the sum of its proper divisors (126444163).

5145343421 is a wasteful number, since it uses less digits than its factorization.

5145343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22611.

The product of its digits is 28800, while the sum is 32.

The square root of 5145343421 is about 71731.0492116210. The cubic root of 5145343421 is about 1726.3868615630.

Adding to 5145343421 its reverse (1243435415), we get a palindrome (6388778836).

The spelling of 5145343421 in words is "five billion, one hundred forty-five million, three hundred forty-three thousand, four hundred twenty-one".