4040125345 has 4 divisors (see below), whose sum is σ = 4848150420. Its totient is φ = 3232100272.

The previous prime is 4040125337. The next prime is 4040125379. The reversal of 4040125345 is 5435210404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2922159249 + 1117966096 = 54057^2 + 33436^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040125345 - 2³ = 4040125337 is a prime.

It is a super-2 number, since 2×4040125345² = 32645225606622738050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404012530 + ... + 404012539.

It is an arithmetic number, because the mean of its divisors is an integer number (1212037605).

Almost surely, 2^4040125345 is an apocalyptic number.

It is an amenable number.

4040125345 is a deficient number, since it is larger than the sum of its proper divisors (808025075).

4040125345 is an equidigital number, since it uses as much as digits as its factorization.

4040125345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808025074.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4040125345 is about 63561.9803420252. The cubic root of 4040125345 is about 1592.6913196255.

Adding to 4040125345 its reverse (5435210404), we get a palindrome (9475335749).

The spelling of 4040125345 in words is "four billion, forty million, one hundred twenty-five thousand, three hundred forty-five".