142115047 has 2 divisors, whose sum is σ = 142115048. Its totient is φ = 142115046.

The previous prime is 142115033. The next prime is 142115063. The reversal of 142115047 is 740511241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142115047 - 2⁷ = 142114919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142115647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71057523 + 71057524.

It is an arithmetic number, because the mean of its divisors is an integer number (71057524).

Almost surely, 2^142115047 is an apocalyptic number.

142115047 is a deficient number, since it is larger than the sum of its proper divisors (1).

142115047 is an equidigital number, since it uses as much as digits as its factorization.

142115047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 142115047 is about 11921.2015753447. The cubic root of 142115047 is about 521.8512014534.

Adding to 142115047 its reverse (740511241), we get a palindrome (882626288).

The spelling of 142115047 in words is "one hundred forty-two million, one hundred fifteen thousand, forty-seven".