1372556543 has 2 divisors, whose sum is σ = 1372556544. Its totient is φ = 1372556542.

The previous prime is 1372556539. The next prime is 1372556567. The reversal of 1372556543 is 3456552731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1372556543 - 2² = 1372556539 is a prime.

It is a super-2 number, since 2×1372556543² = 3767822927464221698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1372556543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372556513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686278271 + 686278272.

It is an arithmetic number, because the mean of its divisors is an integer number (686278272).

Almost surely, 2^1372556543 is an apocalyptic number.

1372556543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372556543 is an equidigital number, since it uses as much as digits as its factorization.

1372556543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The square root of 1372556543 is about 37048.0302175433. The cubic root of 1372556543 is about 1111.3309638462.

The spelling of 1372556543 in words is "one billion, three hundred seventy-two million, five hundred fifty-six thousand, five hundred forty-three".