945353491 has 4 divisors (see below), whose sum is σ = 946577232. Its totient is φ = 944129752.

The previous prime is 945353477. The next prime is 945353503. The reversal of 945353491 is 194353549.

It is a happy number.

945353491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 945353491 - 2¹⁷ = 945222419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945353191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610711 + ... + 612256.

It is an arithmetic number, because the mean of its divisors is an integer number (236644308).

Almost surely, 2^945353491 is an apocalyptic number.

945353491 is a deficient number, since it is larger than the sum of its proper divisors (1223741).

945353491 is a wasteful number, since it uses less digits than its factorization.

945353491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223740.

The product of its digits is 291600, while the sum is 43.

The square root of 945353491 is about 30746.6012918501. The cubic root of 945353491 is about 981.4422367978.

The spelling of 945353491 in words is "nine hundred forty-five million, three hundred fifty-three thousand, four hundred ninety-one".