145232147 has 2 divisors, whose sum is σ = 145232148. Its totient is φ = 145232146.

The previous prime is 145232111. The next prime is 145232201. The reversal of 145232147 is 741232541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145232147 - 2⁶ = 145232083 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (145232107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72616073 + 72616074.

It is an arithmetic number, because the mean of its divisors is an integer number (72616074).

Almost surely, 2^145232147 is an apocalyptic number.

145232147 is a deficient number, since it is larger than the sum of its proper divisors (1).

145232147 is an equidigital number, since it uses as much as digits as its factorization.

145232147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 145232147 is about 12051.2301031886. The cubic root of 145232147 is about 525.6390066457.

Adding to 145232147 its reverse (741232541), we get a palindrome (886464688).

The spelling of 145232147 in words is "one hundred forty-five million, two hundred thirty-two thousand, one hundred forty-seven".