1445523203242 has 8 divisors (see below), whose sum is σ = 2243053246500. Its totient is φ = 697838787744.

The previous prime is 1445523203231. The next prime is 1445523203251. The reversal of 1445523203242 is 2423023255441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1443864188881 + 1659014361 = 1201609^2 + 40731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1445523203242² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12461406867 + ... + 12461406982.

Almost surely, 2^{1445523203242} is an apocalyptic number.

1445523203242 is a deficient number, since it is larger than the sum of its proper divisors (797530043258).

1445523203242 is a wasteful number, since it uses less digits than its factorization.

1445523203242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24922813880.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 1445523203242 its reverse (2423023255441), we get a palindrome (3868546458683).

The spelling of 1445523203242 in words is "one trillion, four hundred forty-five billion, five hundred twenty-three million, two hundred three thousand, two hundred forty-two".