1245641 has 8 divisors (see below), whose sum is σ = 1347840. Its totient is φ = 1146688.

The previous prime is 1245623. The next prime is 1245649. The reversal of 1245641 is 1465421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245641 - 2¹⁴ = 1229257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 1578.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

2^1245641 is an apocalyptic number.

It is an amenable number.

1245641 is a deficient number, since it is larger than the sum of its proper divisors (102199).

1245641 is a wasteful number, since it uses less digits than its factorization.

1245641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its digits is 960, while the sum is 23.

The square root of 1245641 is about 1116.0828822269. The cubic root of 1245641 is about 107.5963729240.

The spelling of 1245641 in words is "one million, two hundred forty-five thousand, six hundred forty-one".