1445620455 has 24 divisors (see below), whose sum is σ = 2507283792. Its totient is φ = 770523264.

The previous prime is 1445620439. The next prime is 1445620481. The reversal of 1445620455 is 5540265441.

1445620455 is a `hidden beast` number, since 1 + 44 + 562 + 0 + 4 + 55 = 666.

It is not a de Polignac number, because 1445620455 - 2⁴ = 1445620439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71427 + ... + 89403.

It is an arithmetic number, because the mean of its divisors is an integer number (104470158).

Almost surely, 2^1445620455 is an apocalyptic number.

1445620455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1445620455 is a deficient number, since it is larger than the sum of its proper divisors (1061663337).

1445620455 is a wasteful number, since it uses less digits than its factorization.

1445620455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19775 (or 19772 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 1445620455 is about 38021.3157978521. The cubic root of 1445620455 is about 1130.7105080783.

Adding to 1445620455 its reverse (5540265441), we get a palindrome (6985885896).

The spelling of 1445620455 in words is "one billion, four hundred forty-five million, six hundred twenty thousand, four hundred fifty-five".