1379432543 has 2 divisors, whose sum is σ = 1379432544. Its totient is φ = 1379432542.

The previous prime is 1379432507. The next prime is 1379432569. The reversal of 1379432543 is 3452349731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379432543 - 2¹⁶ = 1379367007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1379432543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379432503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689716271 + 689716272.

It is an arithmetic number, because the mean of its divisors is an integer number (689716272).

Almost surely, 2^1379432543 is an apocalyptic number.

1379432543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379432543 is an equidigital number, since it uses as much as digits as its factorization.

1379432543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 1379432543 is about 37140.7127422186. The cubic root of 1379432543 is about 1113.1836590376.

The spelling of 1379432543 in words is "one billion, three hundred seventy-nine million, four hundred thirty-two thousand, five hundred forty-three".