2945523 has 8 divisors (see below), whose sum is σ = 4488448. Its totient is φ = 1683144.

The previous prime is 2945519. The next prime is 2945531. The reversal of 2945523 is 3255492.

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

It is not a de Polignac number, because 2945523 - 2² = 2945519 is a prime.

It is a super-2 number, since 2×2945523² = 17352211487058, which contains 22 as substring.

It is a Duffinian number.

2945523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2945123) 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, 70111 + ... + 70152.

It is an arithmetic number, because the mean of its divisors is an integer number (561056).

2^2945523 is an apocalyptic number.

2945523 is a deficient number, since it is larger than the sum of its proper divisors (1542925).

2945523 is a wasteful number, since it uses less digits than its factorization.

2945523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140273.

The product of its digits is 10800, while the sum is 30.

The square root of 2945523 is about 1716.2526037854. The cubic root of 2945523 is about 143.3466251720.

The spelling of 2945523 in words is "two million, nine hundred forty-five thousand, five hundred twenty-three".