1445522013 has 48 divisors (see below), whose sum is σ = 2330648320. Its totient is φ = 857630592.

The previous prime is 1445522003. The next prime is 1445522017. The reversal of 1445522013 is 3102255441.

1445522013 is a `hidden beast` number, since 1 + 4 + 455 + 2 + 201 + 3 = 666.

It is not a de Polignac number, because 1445522013 - 2¹⁴ = 1445505629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445522017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395631 + ... + 399267.

Almost surely, 2^1445522013 is an apocalyptic number.

1445522013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1445522013 is a deficient number, since it is larger than the sum of its proper divisors (885126307).

1445522013 is a wasteful number, since it uses less digits than its factorization.

1445522013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1445522013 is about 38020.0212125138. The cubic root of 1445522013 is about 1130.6848416064.

Adding to 1445522013 its reverse (3102255441), we get a palindrome (4547777454).

The spelling of 1445522013 in words is "one billion, four hundred forty-five million, five hundred twenty-two thousand, thirteen".