1235641 has 4 divisors (see below), whose sum is σ = 1347984. Its totient is φ = 1123300.

The previous prime is 1235593. The next prime is 1235651. The reversal of 1235641 is 1465321.

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 a cyclic number.

It is not a de Polignac number, because 1235641 - 2¹¹ = 1233593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1235651) 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, 56155 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (336996).

2^1235641 is an apocalyptic number.

1235641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1235641 is a deficient number, since it is larger than the sum of its proper divisors (112343).

1235641 is a wasteful number, since it uses less digits than its factorization.

1235641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112342.

The product of its digits is 720, while the sum is 22.

The square root of 1235641 is about 1111.5939006670. The cubic root of 1235641 is about 107.3076712523.

It can be divided in two parts, 12 and 35641, that added together give a palindrome (35653).

The spelling of 1235641 in words is "one million, two hundred thirty-five thousand, six hundred forty-one".