1445909513 has 8 divisors (see below), whose sum is σ = 1531295808. Its totient is φ = 1362399984.

The previous prime is 1445909501. The next prime is 1445909561. The reversal of 1445909513 is 3159095441.

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 1445909513 - 2¹⁶ = 1445843977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445909713) 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, 467606 + ... + 470687.

It is an arithmetic number, because the mean of its divisors is an integer number (191411976).

Almost surely, 2^1445909513 is an apocalyptic number.

It is an amenable number.

1445909513 is a deficient number, since it is larger than the sum of its proper divisors (85386295).

1445909513 is an equidigital number, since it uses as much as digits as its factorization.

1445909513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938383.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 1445909513 is about 38025.1168703003. The cubic root of 1445909513 is about 1130.7858665250.

The spelling of 1445909513 in words is "one billion, four hundred forty-five million, nine hundred nine thousand, five hundred thirteen".