345142249 has 2 divisors, whose sum is σ = 345142250. Its totient is φ = 345142248.

The previous prime is 345142207. The next prime is 345142261. The reversal of 345142249 is 942241543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287913024 + 57229225 = 16968^2 + 7565^2 .

It is a cyclic number.

It is not a de Polignac number, because 345142249 - 2⁷ = 345142121 is a prime.

It is not a weakly prime, because it can be changed into another prime (345142649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172571124 + 172571125.

It is an arithmetic number, because the mean of its divisors is an integer number (172571125).

Almost surely, 2^345142249 is an apocalyptic number.

It is an amenable number.

345142249 is a deficient number, since it is larger than the sum of its proper divisors (1).

345142249 is an equidigital number, since it uses as much as digits as its factorization.

345142249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 345142249 is about 18578.0044407358. The cubic root of 345142249 is about 701.4542887870.

It can be divided in two parts, 34514 and 2249, that added together give a palindrome (36763).

The spelling of 345142249 in words is "three hundred forty-five million, one hundred forty-two thousand, two hundred forty-nine".