493151 has 4 divisors (see below), whose sum is σ = 496272. Its totient is φ = 490032.

The previous prime is 493147. The next prime is 493159. The reversal of 493151 is 151394.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493151 - 2² = 493147 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493159) 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, 1310 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (124068).

2⁴⁹³¹⁵¹ is an apocalyptic number.

493151 is a deficient number, since it is larger than the sum of its proper divisors (3121).

493151 is a wasteful number, since it uses less digits than its factorization.

493151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its digits is 540, while the sum is 23.

The square root of 493151 is about 702.2471075056. The cubic root of 493151 is about 79.0059814944.

The spelling of 493151 in words is "four hundred ninety-three thousand, one hundred fifty-one".