735013561 has 4 divisors (see below), whose sum is σ = 735518800. Its totient is φ = 734508324.

The previous prime is 735013549. The next prime is 735013579. The reversal of 735013561 is 165310537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 735013561 - 2⁵ = 735013529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (735013511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250431 + ... + 253348.

It is an arithmetic number, because the mean of its divisors is an integer number (183879700).

Almost surely, 2^735013561 is an apocalyptic number.

It is an amenable number.

735013561 is a deficient number, since it is larger than the sum of its proper divisors (505239).

735013561 is a wasteful number, since it uses less digits than its factorization.

735013561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505238.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 735013561 is about 27111.1335248086. The cubic root of 735013561 is about 902.4679427844.

The spelling of 735013561 in words is "seven hundred thirty-five million, thirteen thousand, five hundred sixty-one".