1241945 has 4 divisors (see below), whose sum is σ = 1490340. Its totient is φ = 993552.

The previous prime is 1241941. The next prime is 1241951. The reversal of 1241945 is 5491421.

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 868624 + 373321 = 932^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241945 - 2² = 1241941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241941) 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, 124190 + ... + 124199.

It is an arithmetic number, because the mean of its divisors is an integer number (372585).

2^1241945 is an apocalyptic number.

It is an amenable number.

1241945 is a deficient number, since it is larger than the sum of its proper divisors (248395).

1241945 is an equidigital number, since it uses as much as digits as its factorization.

1241945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248394.

The product of its digits is 1440, while the sum is 26.

The square root of 1241945 is about 1114.4258611500. The cubic root of 1241945 is about 107.4898494111.

It can be divided in two parts, 12419 and 45, that multiplied together give a palindrome (558855).

The spelling of 1241945 in words is "one million, two hundred forty-one thousand, nine hundred forty-five".