145344349 has 2 divisors, whose sum is σ = 145344350. Its totient is φ = 145344348.

The previous prime is 145344323. The next prime is 145344359. The reversal of 145344349 is 943443541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144432324 + 912025 = 12018^2 + 955^2 .

It is an emirp because it is prime and its reverse (943443541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145344349 - 2¹³ = 145336157 is a prime.

It is a super-2 number, since 2×145344349² = 42249959572467602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145344359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72672174 + 72672175.

It is an arithmetic number, because the mean of its divisors is an integer number (72672175).

Almost surely, 2^145344349 is an apocalyptic number.

It is an amenable number.

145344349 is a deficient number, since it is larger than the sum of its proper divisors (1).

145344349 is an equidigital number, since it uses as much as digits as its factorization.

145344349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 145344349 is about 12055.8844138454. The cubic root of 145344349 is about 525.7743361105.

The spelling of 145344349 in words is "one hundred forty-five million, three hundred forty-four thousand, three hundred forty-nine".