145233451 has 8 divisors (see below), whose sum is σ = 158760000. Its totient is φ = 131760840.

The previous prime is 145233449. The next prime is 145233503. The reversal of 145233451 is 154332541.

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

It is a cyclic number.

It is not a de Polignac number, because 145233451 - 2¹ = 145233449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145230451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7741 + ... + 18718.

It is an arithmetic number, because the mean of its divisors is an integer number (19845000).

Almost surely, 2^145233451 is an apocalyptic number.

145233451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145233451 is a deficient number, since it is larger than the sum of its proper divisors (13526549).

145233451 is a wasteful number, since it uses less digits than its factorization.

145233451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969.

The product of its digits is 7200, while the sum is 28.

The square root of 145233451 is about 12051.2842054281. The cubic root of 145233451 is about 525.6405798309.

Adding to 145233451 its reverse (154332541), we get a palindrome (299565992).

The spelling of 145233451 in words is "one hundred forty-five million, two hundred thirty-three thousand, four hundred fifty-one".