4251131605 has 32 divisors (see below), whose sum is σ = 6385962240. Its totient is φ = 2648970240.

The previous prime is 4251131593. The next prime is 4251131609. The reversal of 4251131605 is 5061311524.

It is not a de Polignac number, because 4251131605 - 2¹³ = 4251123413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251131609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105931 + ... + 140440.

It is an arithmetic number, because the mean of its divisors is an integer number (199561320).

Almost surely, 2^4251131605 is an apocalyptic number.

It is an amenable number.

4251131605 is a deficient number, since it is larger than the sum of its proper divisors (2134830635).

4251131605 is a wasteful number, since it uses less digits than its factorization.

4251131605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246429.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 4251131605 is about 65200.7024885469. The cubic root of 4251131605 is about 1619.9496510542.

The spelling of 4251131605 in words is "four billion, two hundred fifty-one million, one hundred thirty-one thousand, six hundred five".