345901447 has 2 divisors, whose sum is σ = 345901448. Its totient is φ = 345901446.

The previous prime is 345901433. The next prime is 345901459. The reversal of 345901447 is 744109543.

It is a strong prime.

It is an emirp because it is prime and its reverse (744109543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345901447 - 2¹¹ = 345899399 is a prime.

It is a super-2 number, since 2×345901447² = 239295622073387618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345901427) 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, 172950723 + 172950724.

It is an arithmetic number, because the mean of its divisors is an integer number (172950724).

Almost surely, 2^345901447 is an apocalyptic number.

345901447 is a deficient number, since it is larger than the sum of its proper divisors (1).

345901447 is an equidigital number, since it uses as much as digits as its factorization.

345901447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 345901447 is about 18598.4259280187. The cubic root of 345901447 is about 701.9682340748.

The spelling of 345901447 in words is "three hundred forty-five million, nine hundred one thousand, four hundred forty-seven".