142332251 has 2 divisors, whose sum is σ = 142332252. Its totient is φ = 142332250.

The previous prime is 142332227. The next prime is 142332259. The reversal of 142332251 is 152233241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142332251 - 2¹⁰ = 142331227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (142332259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71166125 + 71166126.

It is an arithmetic number, because the mean of its divisors is an integer number (71166126).

Almost surely, 2^142332251 is an apocalyptic number.

142332251 is a deficient number, since it is larger than the sum of its proper divisors (1).

142332251 is an equidigital number, since it uses as much as digits as its factorization.

142332251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 142332251 is about 11930.3080848736. The cubic root of 142332251 is about 522.1169262396.

Adding to 142332251 its reverse (152233241), we get a palindrome (294565492).

The spelling of 142332251 in words is "one hundred forty-two million, three hundred thirty-two thousand, two hundred fifty-one".