145332347 has 2 divisors, whose sum is σ = 145332348. Its totient is φ = 145332346.

The previous prime is 145332329. The next prime is 145332353. The reversal of 145332347 is 743233541.

145332347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145332347 is a prime.

It is a super-2 number, since 2×145332347² = 42242982169056818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145334347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72666173 + 72666174.

It is an arithmetic number, because the mean of its divisors is an integer number (72666174).

Almost surely, 2^145332347 is an apocalyptic number.

145332347 is a deficient number, since it is larger than the sum of its proper divisors (1).

145332347 is an equidigital number, since it uses as much as digits as its factorization.

145332347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 32.

The square root of 145332347 is about 12055.3866383455. The cubic root of 145332347 is about 525.7598635440.

Adding to 145332347 its reverse (743233541), we get a palindrome (888565888).

The spelling of 145332347 in words is "one hundred forty-five million, three hundred thirty-two thousand, three hundred forty-seven".