1601263 has 8 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 1494360.

The previous prime is 1601261. The next prime is 1601267. The reversal of 1601263 is 3621061.

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 1601263 - 2¹ = 1601261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601261) 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, 756 + ... + 1942.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

2^1601263 is an apocalyptic number.

1601263 is a deficient number, since it is larger than the sum of its proper divisors (109457).

1601263 is a wasteful number, since it uses less digits than its factorization.

1601263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1601263 is about 1265.4102101690. The cubic root of 1601263 is about 116.9914767210.

The spelling of 1601263 in words is "one million, six hundred one thousand, two hundred sixty-three".