4051493 has 4 divisors (see below), whose sum is σ = 4055520. Its totient is φ = 4047468.

The previous prime is 4051477. The next prime is 4051499. The reversal of 4051493 is 3941504.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4051493 - 2⁴ = 4051477 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 (4051499) 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, 968 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (1013880).

Almost surely, 2^4051493 is an apocalyptic number.

It is an amenable number.

4051493 is a deficient number, since it is larger than the sum of its proper divisors (4027).

4051493 is a wasteful number, since it uses less digits than its factorization.

4051493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4051493 is about 2012.8320844025. The cubic root of 4051493 is about 159.4183699987.

Adding to 4051493 its reverse (3941504), we get a palindrome (7992997).

The spelling of 4051493 in words is "four million, fifty-one thousand, four hundred ninety-three".