145542347 has 2 divisors, whose sum is σ = 145542348. Its totient is φ = 145542346.

The previous prime is 145542317. The next prime is 145542373. The reversal of 145542347 is 743245541.

145542347 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 not a de Polignac number, because 145542347 - 2⁶ = 145542283 is a prime.

It is a Chen prime.

It is equal to p_8207387 and since 145542347 and 8207387 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (145542317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72771173 + 72771174.

It is an arithmetic number, because the mean of its divisors is an integer number (72771174).

Almost surely, 2^145542347 is an apocalyptic number.

145542347 is a deficient number, since it is larger than the sum of its proper divisors (1).

145542347 is an equidigital number, since it uses as much as digits as its factorization.

145542347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 35.

The square root of 145542347 is about 12064.0932937374. The cubic root of 145542347 is about 526.0129763505.

Adding to 145542347 its reverse (743245541), we get a palindrome (888787888).

The spelling of 145542347 in words is "one hundred forty-five million, five hundred forty-two thousand, three hundred forty-seven".