481403561 has 4 divisors (see below), whose sum is σ = 481564500. Its totient is φ = 481242624.

The previous prime is 481403539. The next prime is 481403609. The reversal of 481403561 is 165304184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 242113600 + 239289961 = 15560^2 + 15469^2 .

It is a cyclic number.

It is not a de Polignac number, because 481403561 - 2⁶ = 481403497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481453561) 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, 75896 + ... + 81993.

It is an arithmetic number, because the mean of its divisors is an integer number (120391125).

Almost surely, 2^481403561 is an apocalyptic number.

It is an amenable number.

481403561 is a deficient number, since it is larger than the sum of its proper divisors (160939).

481403561 is a wasteful number, since it uses less digits than its factorization.

481403561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160938.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 481403561 is about 21940.9106693410. The cubic root of 481403561 is about 783.7359460828.

The spelling of 481403561 in words is "four hundred eighty-one million, four hundred three thousand, five hundred sixty-one".