142371841 has 2 divisors, whose sum is σ = 142371842. Its totient is φ = 142371840.

The previous prime is 142371797. The next prime is 142371877. The reversal of 142371841 is 148173241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137945025 + 4426816 = 11745^2 + 2104^2 .

It is a cyclic number.

It is not a de Polignac number, because 142371841 - 2¹³ = 142363649 is a prime.

It is a super-2 number, since 2×142371841² = 40539482219458562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142371241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71185920 + 71185921.

It is an arithmetic number, because the mean of its divisors is an integer number (71185921).

Almost surely, 2^142371841 is an apocalyptic number.

It is an amenable number.

142371841 is a deficient number, since it is larger than the sum of its proper divisors (1).

142371841 is an equidigital number, since it uses as much as digits as its factorization.

142371841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 142371841 is about 11931.9671890263. The cubic root of 142371841 is about 522.1653310407.

The spelling of 142371841 in words is "one hundred forty-two million, three hundred seventy-one thousand, eight hundred forty-one".