2430142251 has 4 divisors (see below), whose sum is σ = 3240189672. Its totient is φ = 1620094832.

The previous prime is 2430142243. The next prime is 2430142271. The reversal of 2430142251 is 1522410342.

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 2430142251 - 2³ = 2430142243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2430142271) 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, 405023706 + ... + 405023711.

It is an arithmetic number, because the mean of its divisors is an integer number (810047418).

Almost surely, 2^2430142251 is an apocalyptic number.

2430142251 is a deficient number, since it is larger than the sum of its proper divisors (810047421).

2430142251 is an equidigital number, since it uses as much as digits as its factorization.

2430142251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810047420.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2430142251 is about 49296.4730077112. The cubic root of 2430142251 is about 1344.4476573773.

Adding to 2430142251 its reverse (1522410342), we get a palindrome (3952552593).

The spelling of 2430142251 in words is "two billion, four hundred thirty million, one hundred forty-two thousand, two hundred fifty-one".