142183031 has 2 divisors, whose sum is σ = 142183032. Its totient is φ = 142183030.

The previous prime is 142182973. The next prime is 142183051. The reversal of 142183031 is 130381241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142183031 - 2²² = 137988727 is a prime.

It is a super-2 number, since 2×142183031² = 40432028608693922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 142182988 and 142183006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142183051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71091515 + 71091516.

It is an arithmetic number, because the mean of its divisors is an integer number (71091516).

Almost surely, 2^142183031 is an apocalyptic number.

142183031 is a deficient number, since it is larger than the sum of its proper divisors (1).

142183031 is an equidigital number, since it uses as much as digits as its factorization.

142183031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 142183031 is about 11924.0526248419. The cubic root of 142183031 is about 521.9344013612.

The spelling of 142183031 in words is "one hundred forty-two million, one hundred eighty-three thousand, thirty-one".