2945515423 has 4 divisors (see below), whose sum is σ = 2948324400. Its totient is φ = 2942706448.

The previous prime is 2945515409. The next prime is 2945515429. The reversal of 2945515423 is 3245155492.

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 2945515423 - 2¹³ = 2945507231 is a prime.

It is a super-2 number, since 2×2945515423² = 17352122214261737858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945515429) 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, 1402915 + ... + 1405012.

It is an arithmetic number, because the mean of its divisors is an integer number (737081100).

Almost surely, 2^2945515423 is an apocalyptic number.

2945515423 is a deficient number, since it is larger than the sum of its proper divisors (2808977).

2945515423 is a wasteful number, since it uses less digits than its factorization.

2945515423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808976.

The product of its digits is 216000, while the sum is 40.

The square root of 2945515423 is about 54272.6028765896. The cubic root of 2945515423 is about 1433.4650225799.

The spelling of 2945515423 in words is "two billion, nine hundred forty-five million, five hundred fifteen thousand, four hundred twenty-three".