20232451 has 6 divisors (see below), whose sum is σ = 20795460. Its totient is φ = 19684296.

The previous prime is 20232437. The next prime is 20232467. The reversal of 20232451 is 15423202.

It is a de Polignac number, because none of the positive numbers 2^k-20232451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232151) 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 5 ways as a sum of consecutive naturals, for example, 6021 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (3465910).

Almost surely, 2^20232451 is an apocalyptic number.

20232451 is a deficient number, since it is larger than the sum of its proper divisors (563009).

20232451 is an equidigital number, since it uses as much as digits as its factorization.

20232451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14853 (or 14816 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20232451 is about 4498.0496884761. The cubic root of 20232451 is about 272.4893287632.

Adding to 20232451 its reverse (15423202), we get a palindrome (35655653).

Subtracting from 20232451 its reverse (15423202), we obtain a square (4809249 = 2193²).

The spelling of 20232451 in words is "twenty million, two hundred thirty-two thousand, four hundred fifty-one".