1405051343 has 4 divisors (see below), whose sum is σ = 1487701440. Its totient is φ = 1322401248.

The previous prime is 1405051339. The next prime is 1405051381. The reversal of 1405051343 is 3431505041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1405051343 - 2² = 1405051339 is a prime.

It is a super-4 number, since 4×1405051343⁴ (a number of 38 digits) contains 4444 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 (1405051643) 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, 41325023 + ... + 41325056.

It is an arithmetic number, because the mean of its divisors is an integer number (371925360).

Almost surely, 2^1405051343 is an apocalyptic number.

1405051343 is a deficient number, since it is larger than the sum of its proper divisors (82650097).

1405051343 is an equidigital number, since it uses as much as digits as its factorization.

1405051343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82650096.

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

The square root of 1405051343 is about 37484.0144995170. The cubic root of 1405051343 is about 1120.0327751357.

Adding to 1405051343 its reverse (3431505041), we get a palindrome (4836556384).

The spelling of 1405051343 in words is "one billion, four hundred five million, fifty-one thousand, three hundred forty-three".