1249161 has 4 divisors (see below), whose sum is σ = 1665552. Its totient is φ = 832772.

The previous prime is 1249159. The next prime is 1249163. The reversal of 1249161 is 1619421.

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.

It is an interprime number because it is at equal distance from previous prime (1249159) and next prime (1249163).

It is a cyclic number.

It is not a de Polignac number, because 1249161 - 2¹ = 1249159 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1249163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208191 + ... + 208196.

It is an arithmetic number, because the mean of its divisors is an integer number (416388).

2^1249161 is an apocalyptic number.

It is an amenable number.

1249161 is a deficient number, since it is larger than the sum of its proper divisors (416391).

1249161 is an equidigital number, since it uses as much as digits as its factorization.

1249161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416390.

The product of its digits is 432, while the sum is 24.

The square root of 1249161 is about 1117.6587135615. The cubic root of 1249161 is about 107.6976281647.

The spelling of 1249161 in words is "one million, two hundred forty-nine thousand, one hundred sixty-one".