1445190671 has 8 divisors (see below), whose sum is σ = 1508419584. Its totient is φ = 1381994680.

The previous prime is 1445190653. The next prime is 1445190679. The reversal of 1445190671 is 1760915441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1445190671 - 2²² = 1440996367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445190679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133886 + ... + 144276.

It is an arithmetic number, because the mean of its divisors is an integer number (188552448).

Almost surely, 2^1445190671 is an apocalyptic number.

1445190671 is a deficient number, since it is larger than the sum of its proper divisors (63228913).

1445190671 is a wasteful number, since it uses less digits than its factorization.

1445190671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16461.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1445190671 is about 38015.6634954593. The cubic root of 1445190671 is about 1130.5984432898.

The spelling of 1445190671 in words is "one billion, four hundred forty-five million, one hundred ninety thousand, six hundred seventy-one".