1373522543 has 8 divisors (see below), whose sum is σ = 1396629360. Its totient is φ = 1350434880.

The previous prime is 1373522539. The next prime is 1373522551. The reversal of 1373522543 is 3452253731.

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 1373522543 - 2² = 1373522539 is a prime.

It is a super-2 number, since 2×1373522543² = 3773128352258373698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373522503) 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, 266396 + ... + 271502.

It is an arithmetic number, because the mean of its divisors is an integer number (174578670).

Almost surely, 2^1373522543 is an apocalyptic number.

1373522543 is a deficient number, since it is larger than the sum of its proper divisors (23106817).

1373522543 is an equidigital number, since it uses as much as digits as its factorization.

1373522543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9577.

The product of its digits is 75600, while the sum is 35.

The square root of 1373522543 is about 37061.0650548524. The cubic root of 1373522543 is about 1111.5916195213.

The spelling of 1373522543 in words is "one billion, three hundred seventy-three million, five hundred twenty-two thousand, five hundred forty-three".