801653261 has 8 divisors (see below), whose sum is σ = 821000448. Its totient is φ = 782530000.

The previous prime is 801653239. The next prime is 801653269. The reversal of 801653261 is 162356108.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801653261 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 (801653269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48725 + ... + 63066.

It is an arithmetic number, because the mean of its divisors is an integer number (102625056).

Almost surely, 2^801653261 is an apocalyptic number.

It is an amenable number.

801653261 is a deficient number, since it is larger than the sum of its proper divisors (19347187).

801653261 is a wasteful number, since it uses less digits than its factorization.

801653261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111963.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 801653261 is about 28313.4819653112. The cubic root of 801653261 is about 928.9568065327.

The spelling of 801653261 in words is "eight hundred one million, six hundred fifty-three thousand, two hundred sixty-one".