1445620425 has 24 divisors (see below), whose sum is σ = 2400039840. Its totient is φ = 767788800.

The previous prime is 1445620417. The next prime is 1445620439. The reversal of 1445620425 is 5240265441.

It is not a de Polignac number, because 1445620425 - 2³ = 1445620417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21915 + ... + 58064.

It is an arithmetic number, because the mean of its divisors is an integer number (100001660).

Almost surely, 2^1445620425 is an apocalyptic number.

1445620425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445620425 is a deficient number, since it is larger than the sum of its proper divisors (954419415).

1445620425 is a wasteful number, since it uses less digits than its factorization.

1445620425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80233 (or 80228 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 1445620425 is about 38021.3154033366. The cubic root of 1445620425 is about 1130.7105002567.

Adding to 1445620425 its reverse (5240265441), we get a palindrome (6685885866).

The spelling of 1445620425 in words is "one billion, four hundred forty-five million, six hundred twenty thousand, four hundred twenty-five".