4535981 has 4 divisors (see below), whose sum is σ = 4555200. Its totient is φ = 4516764.

The previous prime is 4535969. The next prime is 4535983. The reversal of 4535981 is 1895354.

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 4535981 - 2⁶ = 4535917 is a prime.

It is a super-2 number, since 2×4535981² = 41150247264722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4535983) 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, 9251 + ... + 9728.

It is an arithmetic number, because the mean of its divisors is an integer number (1138800).

Almost surely, 2^4535981 is an apocalyptic number.

It is an amenable number.

4535981 is a deficient number, since it is larger than the sum of its proper divisors (19219).

4535981 is a wasteful number, since it uses less digits than its factorization.

4535981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19218.

The product of its digits is 21600, while the sum is 35.

The square root of 4535981 is about 2129.7842613748. The cubic root of 4535981 is about 165.5352194557.

The spelling of 4535981 in words is "four million, five hundred thirty-five thousand, nine hundred eighty-one".