145451 has 2 divisors, whose sum is σ = 145452. Its totient is φ = 145450.

The previous prime is 145441. The next prime is 145459. The reversal of 145451 is 154541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145451 - 2¹⁰ = 144427 is a prime.

It is equal to p₁₃₄₅₇ and since 145451 and 13457 have the same sum of digits, it is a Honaker prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145451.

It is not a weakly prime, because it can be changed into another prime (145459) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72725 + 72726.

It is an arithmetic number, because the mean of its divisors is an integer number (72726).

2¹⁴⁵⁴⁵¹ is an apocalyptic number.

145451 is a deficient number, since it is larger than the sum of its proper divisors (1).

145451 is an equidigital number, since it uses as much as digits as its factorization.

145451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 20.

The square root of 145451 is about 381.3803875398. The cubic root of 145451 is about 52.5902905835.

Adding to 145451 its reverse (154541), we get a palindrome (299992).

The spelling of 145451 in words is "one hundred forty-five thousand, four hundred fifty-one".