1446561377 has 4 divisors (see below), whose sum is σ = 1446712260. Its totient is φ = 1446410496.

The previous prime is 1446561367. The next prime is 1446561397. The reversal of 1446561377 is 7731656441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7731656441 = 971 ⋅7962571.

It can be written as a sum of positive squares in 2 ways, for example, as 1325032801 + 121528576 = 36401^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1446561377 - 2³⁰ = 372819553 is a prime.

It is a super-2 number, since 2×1446561377² = 4185079634856272258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1446561307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60008 + ... + 80585.

It is an arithmetic number, because the mean of its divisors is an integer number (361678065).

Almost surely, 2^1446561377 is an apocalyptic number.

It is an amenable number.

1446561377 is a deficient number, since it is larger than the sum of its proper divisors (150883).

1446561377 is a wasteful number, since it uses less digits than its factorization.

1446561377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150882.

The product of its digits is 423360, while the sum is 44.

The square root of 1446561377 is about 38033.6873968328. The cubic root of 1446561377 is about 1130.9557729281.

The spelling of 1446561377 in words is "one billion, four hundred forty-six million, five hundred sixty-one thousand, three hundred seventy-seven".