145697347 has 2 divisors, whose sum is σ = 145697348. Its totient is φ = 145697346.

The previous prime is 145697323. The next prime is 145697353. The reversal of 145697347 is 743796541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145697347 - 2¹¹ = 145695299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145697297 and 145697306.

It is not a weakly prime, because it can be changed into another prime (145697317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72848673 + 72848674.

It is an arithmetic number, because the mean of its divisors is an integer number (72848674).

Almost surely, 2^145697347 is an apocalyptic number.

145697347 is a deficient number, since it is larger than the sum of its proper divisors (1).

145697347 is an equidigital number, since it uses as much as digits as its factorization.

145697347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 145697347 is about 12070.5156062200. The cubic root of 145697347 is about 526.1996415760.

The spelling of 145697347 in words is "one hundred forty-five million, six hundred ninety-seven thousand, three hundred forty-seven".