142031933 has 2 divisors, whose sum is σ = 142031934. Its totient is φ = 142031932.

The previous prime is 142031921. The next prime is 142031941. The reversal of 142031933 is 339130241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124500964 + 17530969 = 11158^2 + 4187^2 .

It is a cyclic number.

It is not a de Polignac number, because 142031933 - 2⁴ = 142031917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142031963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71015966 + 71015967.

It is an arithmetic number, because the mean of its divisors is an integer number (71015967).

Almost surely, 2^142031933 is an apocalyptic number.

It is an amenable number.

142031933 is a deficient number, since it is larger than the sum of its proper divisors (1).

142031933 is an equidigital number, since it uses as much as digits as its factorization.

142031933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 142031933 is about 11917.7150914091. The cubic root of 142031933 is about 521.7494491529.

The spelling of 142031933 in words is "one hundred forty-two million, thirty-one thousand, nine hundred thirty-three".