2140431551 has 2 divisors, whose sum is σ = 2140431552. Its totient is φ = 2140431550.

The previous prime is 2140431499. The next prime is 2140431569. The reversal of 2140431551 is 1551340412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2140431551 - 2¹⁰ = 2140430527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140431551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140431581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070215775 + 1070215776.

It is an arithmetic number, because the mean of its divisors is an integer number (1070215776).

Almost surely, 2^2140431551 is an apocalyptic number.

2140431551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140431551 is an equidigital number, since it uses as much as digits as its factorization.

2140431551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2140431551 is about 46264.7981839325. The cubic root of 2140431551 is about 1288.7453600796.

Adding to 2140431551 its reverse (1551340412), we get a palindrome (3691771963).

The spelling of 2140431551 in words is "two billion, one hundred forty million, four hundred thirty-one thousand, five hundred fifty-one".