142040741 has 2 divisors, whose sum is σ = 142040742. Its totient is φ = 142040740.

The previous prime is 142040711. The next prime is 142040749. The reversal of 142040741 is 147040241.

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., 135815716 + 6225025 = 11654^2 + 2495^2 .

It is an emirp because it is prime and its reverse (147040241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142040741 - 2⁶ = 142040677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142040749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71020370 + 71020371.

It is an arithmetic number, because the mean of its divisors is an integer number (71020371).

Almost surely, 2^142040741 is an apocalyptic number.

It is an amenable number.

142040741 is a deficient number, since it is larger than the sum of its proper divisors (1).

142040741 is an equidigital number, since it uses as much as digits as its factorization.

142040741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 142040741 is about 11918.0846196023. The cubic root of 142040741 is about 521.7602342256.

Adding to 142040741 its reverse (147040241), we get a palindrome (289080982).

The spelling of 142040741 in words is "one hundred forty-two million, forty thousand, seven hundred forty-one".