1374557 has 2 divisors, whose sum is σ = 1374558. Its totient is φ = 1374556.

The previous prime is 1374551. The next prime is 1374559. The reversal of 1374557 is 7554731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 151321 = 1106^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374557 - 2⁸ = 1374301 is a prime.

Together with 1374559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687278 + 687279.

It is an arithmetic number, because the mean of its divisors is an integer number (687279).

2^1374557 is an apocalyptic number.

It is an amenable number.

1374557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374557 is an equidigital number, since it uses as much as digits as its factorization.

1374557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 32.

The square root of 1374557 is about 1172.4150289040. The cubic root of 1374557 is about 111.1870611466.

The spelling of 1374557 in words is "one million, three hundred seventy-four thousand, five hundred fifty-seven".