945197805 has 16 divisors (see below), whose sum is σ = 1549203264. Its totient is φ = 491809920.

The previous prime is 945197753. The next prime is 945197821. The reversal of 945197805 is 508791549.

It is not a de Polignac number, because 945197805 - 2⁷ = 945197677 is a prime.

It is a super-3 number, since 3×945197805³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767839 + ... + 769068.

It is an arithmetic number, because the mean of its divisors is an integer number (96825204).

Almost surely, 2^945197805 is an apocalyptic number.

It is an amenable number.

945197805 is a deficient number, since it is larger than the sum of its proper divisors (604005459).

945197805 is a wasteful number, since it uses less digits than its factorization.

945197805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536956.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 945197805 is about 30744.0694281027. The cubic root of 945197805 is about 981.3883574091.

The spelling of 945197805 in words is "nine hundred forty-five million, one hundred ninety-seven thousand, eight hundred five".