142127071 has 4 divisors (see below), whose sum is σ = 142352944. Its totient is φ = 141901200.

The previous prime is 142127059. The next prime is 142127113. The reversal of 142127071 is 170721241.

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 142127071 - 2¹⁷ = 141995999 is a prime.

It is a super-2 number, since 2×142127071² = 40400208622078082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142124071) 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, 111990 + ... + 113251.

It is an arithmetic number, because the mean of its divisors is an integer number (35588236).

Almost surely, 2^142127071 is an apocalyptic number.

142127071 is a deficient number, since it is larger than the sum of its proper divisors (225873).

142127071 is an equidigital number, since it uses as much as digits as its factorization.

142127071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225872.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 142127071 is about 11921.7058762578. The cubic root of 142127071 is about 521.8659185483.

The spelling of 142127071 in words is "one hundred forty-two million, one hundred twenty-seven thousand, seventy-one".