1445117402 has 8 divisors (see below), whose sum is σ = 2295186516. Its totient is φ = 680055232.

The previous prime is 1445117369. The next prime is 1445117407. The reversal of 1445117402 is 2047115441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1414436881 + 30680521 = 37609^2 + 5539^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1445117407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21251693 + ... + 21251760.

Almost surely, 2^1445117402 is an apocalyptic number.

1445117402 is a deficient number, since it is larger than the sum of its proper divisors (850069114).

1445117402 is a wasteful number, since it uses less digits than its factorization.

1445117402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42503472.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1445117402 is about 38014.6998146770. The cubic root of 1445117402 is about 1130.5793364183.

The spelling of 1445117402 in words is "one billion, four hundred forty-five million, one hundred seventeen thousand, four hundred two".