1026149 has 4 divisors (see below), whose sum is σ = 1030860. Its totient is φ = 1021440.

The previous prime is 1026143. The next prime is 1026167. The reversal of 1026149 is 9416201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 889249 + 136900 = 943^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026149 - 2¹² = 1022053 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026143) 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, 2012 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (257715).

2^1026149 is an apocalyptic number.

It is an amenable number.

1026149 is a deficient number, since it is larger than the sum of its proper divisors (4711).

1026149 is an equidigital number, since it uses as much as digits as its factorization.

1026149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1026149 is about 1012.9901282836. The cubic root of 1026149 is about 100.8641443686.

The spelling of 1026149 in words is "one million, twenty-six thousand, one hundred forty-nine".