145343351449 has 2 divisors, whose sum is σ = 145343351450. Its totient is φ = 145343351448.

The previous prime is 145343351443. The next prime is 145343351551. The reversal of 145343351449 is 944153343541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105595752025 + 39747599424 = 324955^2 + 199368^2 .

It is a cyclic number.

It is not a de Polignac number, because 145343351449 - 2¹⁷ = 145343220377 is a prime.

It is a super-2 number, since 2×145343351449² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145343351399 and 145343351408.

It is not a weakly prime, because it can be changed into another prime (145343351443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72671675724 + 72671675725.

It is an arithmetic number, because the mean of its divisors is an integer number (72671675725).

Almost surely, 2^145343351449 is an apocalyptic number.

It is an amenable number.

145343351449 is a deficient number, since it is larger than the sum of its proper divisors (1).

145343351449 is an equidigital number, since it uses as much as digits as its factorization.

145343351449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 46.

The spelling of 145343351449 in words is "one hundred forty-five billion, three hundred forty-three million, three hundred fifty-one thousand, four hundred forty-nine".