653081 has 8 divisors (see below), whose sum is σ = 767424. Its totient is φ = 547920.

The previous prime is 653057. The next prime is 653083. The reversal of 653081 is 180356.

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

It is a cyclic number.

It is not a de Polignac number, because 653081 - 2¹⁴ = 636697 is a prime.

It is a super-2 number, since 2×653081² = 853029585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653083) 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, 2141 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (95928).

2⁶⁵³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

653081 is a deficient number, since it is larger than the sum of its proper divisors (114343).

653081 is a wasteful number, since it uses less digits than its factorization.

653081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 653081 is about 808.1342710218. The cubic root of 653081 is about 86.7605606325.

The spelling of 653081 in words is "six hundred fifty-three thousand, eighty-one".