1241649 has 10 divisors (see below), whose sum is σ = 1854930. Its totient is φ = 827712.

The previous prime is 1241627. The next prime is 1241651. The reversal of 1241649 is 9461421.

1241649 is a `hidden beast` number, since 12 + 4 + 1 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 431649 = 900^2 + 657^2 .

It is not a de Polignac number, because 1241649 - 2¹⁶ = 1176113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1241659) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7584 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (185493).

2^1241649 is an apocalyptic number.

It is an amenable number.

1241649 is a deficient number, since it is larger than the sum of its proper divisors (613281).

1241649 is an equidigital number, since it uses as much as digits as its factorization.

1241649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341 (or 15332 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1241649 is about 1114.2930494264. The cubic root of 1241649 is about 107.4813091716.

The spelling of 1241649 in words is "one million, two hundred forty-one thousand, six hundred forty-nine".