1374551 has 2 divisors, whose sum is σ = 1374552. Its totient is φ = 1374550.

The previous prime is 1374547. The next prime is 1374557. The reversal of 1374551 is 1554731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1374551 - 2² = 1374547 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1374551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374557) 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, 687275 + 687276.

It is an arithmetic number, because the mean of its divisors is an integer number (687276).

2^1374551 is an apocalyptic number.

1374551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374551 is an equidigital number, since it uses as much as digits as its factorization.

1374551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 26.

The square root of 1374551 is about 1172.4124700804. The cubic root of 1374551 is about 111.1868993676.

The spelling of 1374551 in words is "one million, three hundred seventy-four thousand, five hundred fifty-one".