1445552241 has 16 divisors (see below), whose sum is σ = 2278704000. Its totient is φ = 797545728.

The previous prime is 1445552239. The next prime is 1445552249. The reversal of 1445552241 is 1422555441.

It is a happy number.

It is not a de Polignac number, because 1445552241 - 2¹ = 1445552239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1445552249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1186216 + ... + 1187433.

It is an arithmetic number, because the mean of its divisors is an integer number (142419000).

Almost surely, 2^1445552241 is an apocalyptic number.

It is an amenable number.

1445552241 is a deficient number, since it is larger than the sum of its proper divisors (833151759).

1445552241 is a wasteful number, since it uses less digits than its factorization.

1445552241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373688.

The product of its digits is 32000, while the sum is 33.

The square root of 1445552241 is about 38020.4187378309. The cubic root of 1445552241 is about 1130.6927229814.

The spelling of 1445552241 in words is "one billion, four hundred forty-five million, five hundred fifty-two thousand, two hundred forty-one".