1554349 has 2 divisors, whose sum is σ = 1554350. Its totient is φ = 1554348.

The previous prime is 1554347. The next prime is 1554359. The reversal of 1554349 is 9434551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 797449 + 756900 = 893^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1554349 - 2¹ = 1554347 is a prime.

Together with 1554347, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1554349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1554347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777174 + 777175.

It is an arithmetic number, because the mean of its divisors is an integer number (777175).

2^1554349 is an apocalyptic number.

It is an amenable number.

1554349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1554349 is an equidigital number, since it uses as much as digits as its factorization.

1554349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 1554349 is about 1246.7353367896. The cubic root of 1554349 is about 115.8375898004.

The spelling of 1554349 in words is "one million, five hundred fifty-four thousand, three hundred forty-nine".