1376542997 has 2 divisors, whose sum is σ = 1376542998. Its totient is φ = 1376542996.

The previous prime is 1376542949. The next prime is 1376543009. The reversal of 1376542997 is 7992456731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1229624356 + 146918641 = 35066^2 + 12121^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376542997 - 2⁶ = 1376542933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376542927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688271498 + 688271499.

It is an arithmetic number, because the mean of its divisors is an integer number (688271499).

Almost surely, 2^1376542997 is an apocalyptic number.

It is an amenable number.

1376542997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376542997 is an equidigital number, since it uses as much as digits as its factorization.

1376542997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 53.

The square root of 1376542997 is about 37101.7923691026. The cubic root of 1376542997 is about 1112.4058406526.

The spelling of 1376542997 in words is "one billion, three hundred seventy-six million, five hundred forty-two thousand, nine hundred ninety-seven".