142023293 has 2 divisors, whose sum is σ = 142023294. Its totient is φ = 142023292.

The previous prime is 142023289. The next prime is 142023319. The reversal of 142023293 is 392320241.

It is an a-pointer prime, because the next prime (142023319) can be obtained adding 142023293 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109453444 + 32569849 = 10462^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 142023293 - 2² = 142023289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142023793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71011646 + 71011647.

It is an arithmetic number, because the mean of its divisors is an integer number (71011647).

Almost surely, 2^142023293 is an apocalyptic number.

It is an amenable number.

142023293 is a deficient number, since it is larger than the sum of its proper divisors (1).

142023293 is an equidigital number, since it uses as much as digits as its factorization.

142023293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 142023293 is about 11917.3526003052. The cubic root of 142023293 is about 521.7388693569.

The spelling of 142023293 in words is "one hundred forty-two million, twenty-three thousand, two hundred ninety-three".