1376541389 has 2 divisors, whose sum is σ = 1376541390. Its totient is φ = 1376541388.

The previous prime is 1376541379. The next prime is 1376541403. The reversal of 1376541389 is 9831456731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1266648100 + 109893289 = 35590^2 + 10483^2 .

It is an emirp because it is prime and its reverse (9831456731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1376541389 - 2²⁴ = 1359764173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376541349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688270694 + 688270695.

It is an arithmetic number, because the mean of its divisors is an integer number (688270695).

Almost surely, 2^1376541389 is an apocalyptic number.

It is an amenable number.

1376541389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376541389 is an equidigital number, since it uses as much as digits as its factorization.

1376541389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 1376541389 is about 37101.7706989842. The cubic root of 1376541389 is about 1112.4054075025.

The spelling of 1376541389 in words is "one billion, three hundred seventy-six million, five hundred forty-one thousand, three hundred eighty-nine".