1541263 has 4 divisors (see below), whose sum is σ = 1594440. Its totient is φ = 1488088.

The previous prime is 1541251. The next prime is 1541273. The reversal of 1541263 is 3621451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1541263 - 2⁹ = 1540751 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 (1541273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26545 + ... + 26602.

It is an arithmetic number, because the mean of its divisors is an integer number (398610).

2^1541263 is an apocalyptic number.

1541263 is a deficient number, since it is larger than the sum of its proper divisors (53177).

1541263 is an equidigital number, since it uses as much as digits as its factorization.

1541263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53176.

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

The square root of 1541263 is about 1241.4761375073. The cubic root of 1541263 is about 115.5115959448.

The spelling of 1541263 in words is "one million, five hundred forty-one thousand, two hundred sixty-three".