4140251405 has 4 divisors (see below), whose sum is σ = 4968301692. Its totient is φ = 3312201120.

The previous prime is 4140251389. The next prime is 4140251477. The reversal of 4140251405 is 5041520414.

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 2751422116 + 1388829289 = 52454^2 + 37267^2 .

It is not a de Polignac number, because 4140251405 - 2⁴ = 4140251389 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 414025136 + ... + 414025145.

It is an arithmetic number, because the mean of its divisors is an integer number (1242075423).

Almost surely, 2^4140251405 is an apocalyptic number.

It is an amenable number.

4140251405 is a deficient number, since it is larger than the sum of its proper divisors (828050287).

4140251405 is an equidigital number, since it uses as much as digits as its factorization.

4140251405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828050286.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4140251405 is about 64344.7853753511. The cubic root of 4140251405 is about 1605.7412756476.

Adding to 4140251405 its reverse (5041520414), we get a palindrome (9181771819).

The spelling of 4140251405 in words is "four billion, one hundred forty million, two hundred fifty-one thousand, four hundred five".