345512449 has 2 divisors, whose sum is σ = 345512450. Its totient is φ = 345512448.

The previous prime is 345512393. The next prime is 345512491. The reversal of 345512449 is 944215543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345402225 + 110224 = 18585^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 345512449 - 2⁹ = 345511937 is a prime.

It is not a weakly prime, because it can be changed into another prime (345512149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172756224 + 172756225.

It is an arithmetic number, because the mean of its divisors is an integer number (172756225).

Almost surely, 2^345512449 is an apocalyptic number.

It is an amenable number.

345512449 is a deficient number, since it is larger than the sum of its proper divisors (1).

345512449 is an equidigital number, since it uses as much as digits as its factorization.

345512449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The square root of 345512449 is about 18587.9651656657. The cubic root of 345512449 is about 701.7049927503.

The spelling of 345512449 in words is "three hundred forty-five million, five hundred twelve thousand, four hundred forty-nine".