1374561 has 6 divisors (see below), whose sum is σ = 1985490. Its totient is φ = 916368.

The previous prime is 1374559. The next prime is 1374589. The reversal of 1374561 is 1654731.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 435600 = 969^2 + 660^2 .

It is not a de Polignac number, because 1374561 - 2¹ = 1374559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374511) 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 in 5 ways as a sum of consecutive naturals, for example, 76356 + ... + 76373.

It is an arithmetic number, because the mean of its divisors is an integer number (330915).

2^1374561 is an apocalyptic number.

It is an amenable number.

1374561 is a deficient number, since it is larger than the sum of its proper divisors (610929).

1374561 is a wasteful number, since it uses less digits than its factorization.

1374561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152735 (or 152732 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1374561 is about 1172.4167347833. The cubic root of 1374561 is about 111.1871689990.

The spelling of 1374561 in words is "one million, three hundred seventy-four thousand, five hundred sixty-one".