231451 has 8 divisors (see below), whose sum is σ = 257904. Its totient is φ = 205920.

The previous prime is 231443. The next prime is 231461. The reversal of 231451 is 154132.

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

It is not a de Polignac number, because 231451 - 2³ = 231443 is a prime.

It is a Duffinian number.

231451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (231431) 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, 385 + ... + 781.

It is an arithmetic number, because the mean of its divisors is an integer number (32238).

2²³¹⁴⁵¹ is an apocalyptic number.

231451 is a deficient number, since it is larger than the sum of its proper divisors (26453).

231451 is a wasteful number, since it uses less digits than its factorization.

231451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its digits is 120, while the sum is 16.

The square root of 231451 is about 481.0935459970. The cubic root of 231451 is about 61.3978297853.

Adding to 231451 its reverse (154132), we get a palindrome (385583).

The spelling of 231451 in words is "two hundred thirty-one thousand, four hundred fifty-one".