71142983 has 2 divisors, whose sum is σ = 71142984. Its totient is φ = 71142982.

The previous prime is 71142961. The next prime is 71142989. The reversal of 71142983 is 38924117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71142983 - 2⁶ = 71142919 is a prime.

It is a super-2 number, since 2×71142983² = 10122648060276578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71142989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35571491 + 35571492.

It is an arithmetic number, because the mean of its divisors is an integer number (35571492).

Almost surely, 2^71142983 is an apocalyptic number.

71142983 is a deficient number, since it is larger than the sum of its proper divisors (1).

71142983 is an equidigital number, since it uses as much as digits as its factorization.

71142983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 71142983 is about 8434.6299859567. The cubic root of 71142983 is about 414.3595540713.

The spelling of 71142983 in words is "seventy-one million, one hundred forty-two thousand, nine hundred eighty-three".