538007461 has 4 divisors (see below), whose sum is σ = 538111852. Its totient is φ = 537903072.

The previous prime is 538007447. The next prime is 538007473. The reversal of 538007461 is 164700835.

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 292615236 + 245392225 = 17106^2 + 15665^2 .

It is a cyclic number.

It is not a de Polignac number, because 538007461 - 2⁵ = 538007429 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 (538007441) 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, 44040 + ... + 54913.

It is an arithmetic number, because the mean of its divisors is an integer number (134527963).

Almost surely, 2^538007461 is an apocalyptic number.

It is an amenable number.

538007461 is a deficient number, since it is larger than the sum of its proper divisors (104391).

538007461 is an equidigital number, since it uses as much as digits as its factorization.

538007461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104390.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 538007461 is about 23194.9878422042. The cubic root of 538007461 is about 813.3224610919.

The spelling of 538007461 in words is "five hundred thirty-eight million, seven thousand, four hundred sixty-one".