901563 has 8 divisors (see below), whose sum is σ = 1294608. Its totient is φ = 554784.

The previous prime is 901547. The next prime is 901567. The reversal of 901563 is 365109.

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

It is not a de Polignac number, because 901563 - 2⁴ = 901547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (901567) 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, 11520 + ... + 11597.

It is an arithmetic number, because the mean of its divisors is an integer number (161826).

2⁹⁰¹⁵⁶³ is an apocalyptic number.

901563 is a deficient number, since it is larger than the sum of its proper divisors (393045).

901563 is a wasteful number, since it uses less digits than its factorization.

901563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23133.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 901563 is about 949.5067140363. The cubic root of 901563 is about 96.6047972447.

It can be divided in two parts, 90 and 1563, that added together give a triangular number (1653 = T₅₇).

The spelling of 901563 in words is "nine hundred one thousand, five hundred sixty-three".