1549097 has 4 divisors (see below), whose sum is σ = 1689936. Its totient is φ = 1408260.

The previous prime is 1549087. The next prime is 1549099. The reversal of 1549097 is 7909451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7909451 = 11 ⋅719041.

It is a cyclic number.

It is not a de Polignac number, because 1549097 - 2⁴ = 1549081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1549099) 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 3 ways as a sum of consecutive naturals, for example, 70403 + ... + 70424.

It is an arithmetic number, because the mean of its divisors is an integer number (422484).

2^1549097 is an apocalyptic number.

It is an amenable number.

1549097 is a deficient number, since it is larger than the sum of its proper divisors (140839).

1549097 is a wasteful number, since it uses less digits than its factorization.

1549097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140838.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1549097 is about 1244.6272534378. The cubic root of 1549097 is about 115.7069744475.

The spelling of 1549097 in words is "one million, five hundred forty-nine thousand, ninety-seven".