146415665449 has 3 divisors (see below), whose sum is σ = 146416048093. Its totient is φ = 146415282806.

The previous prime is 146415665419. The next prime is 146415665453. The reversal of 146415665449 is 944566514641.

The square root of 146415665449 is 382643.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 944566514641 = 11897 ⋅79395353.

It is a de Polignac number, because none of the positive numbers 2^k-146415665449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146415665449.

It is not an unprimeable number, because it can be changed into a prime (146415665419) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 191322 + ... + 573964.

Almost surely, 2^146415665449 is an apocalyptic number.

146415665449 is the 382643-rd square number.

146415665449 is the 191322-nd centered octagonal number.

It is an amenable number.

146415665449 is a deficient number, since it is larger than the sum of its proper divisors (382644).

146415665449 is an frugal number, since it uses more digits than its factorization.

146415665449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765286 (or 382643 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The spelling of 146415665449 in words is "one hundred forty-six billion, four hundred fifteen million, six hundred sixty-five thousand, four hundred forty-nine".