142988761 has 2 divisors, whose sum is σ = 142988762. Its totient is φ = 142988760.

The previous prime is 142988749. The next prime is 142988773. The reversal of 142988761 is 167889241.

142988761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (142988749) and next prime (142988773).

It can be written as a sum of positive squares in only one way, i.e., 142348761 + 640000 = 11931^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 142988761 - 2⁷ = 142988633 is a prime.

It is not a weakly prime, because it can be changed into another prime (142988561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71494380 + 71494381.

It is an arithmetic number, because the mean of its divisors is an integer number (71494381).

Almost surely, 2^142988761 is an apocalyptic number.

It is an amenable number.

142988761 is a deficient number, since it is larger than the sum of its proper divisors (1).

142988761 is an equidigital number, since it uses as much as digits as its factorization.

142988761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 142988761 is about 11957.7908076701. The cubic root of 142988761 is about 522.9184529694.

The spelling of 142988761 in words is "one hundred forty-two million, nine hundred eighty-eight thousand, seven hundred sixty-one".