1445215057 has 8 divisors (see below), whose sum is σ = 1697875200. Its totient is φ = 1212767760.

The previous prime is 1445215039. The next prime is 1445215103. The reversal of 1445215057 is 7505125441.

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 1445215057 - 2¹⁵ = 1445182289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445215357) 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, 5053057 + ... + 5053342.

It is an arithmetic number, because the mean of its divisors is an integer number (212234400).

Almost surely, 2^1445215057 is an apocalyptic number.

It is an amenable number.

1445215057 is a deficient number, since it is larger than the sum of its proper divisors (252660143).

1445215057 is a wasteful number, since it uses less digits than its factorization.

1445215057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106423.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 1445215057 is about 38015.9842303208. The cubic root of 1445215057 is about 1130.6048024550.

The spelling of 1445215057 in words is "one billion, four hundred forty-five million, two hundred fifteen thousand, fifty-seven".