142148977 has 2 divisors, whose sum is σ = 142148978. Its totient is φ = 142148976.

The previous prime is 142148957. The next prime is 142148983. The reversal of 142148977 is 779841241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117158976 + 24990001 = 10824^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 142148977 - 2¹¹ = 142146929 is a prime.

It is not a weakly prime, because it can be changed into another prime (142148957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71074488 + 71074489.

It is an arithmetic number, because the mean of its divisors is an integer number (71074489).

Almost surely, 2^142148977 is an apocalyptic number.

It is an amenable number.

142148977 is a deficient number, since it is larger than the sum of its proper divisors (1).

142148977 is an equidigital number, since it uses as much as digits as its factorization.

142148977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The square root of 142148977 is about 11922.6245852161. The cubic root of 142148977 is about 521.8927288466.

The spelling of 142148977 in words is "one hundred forty-two million, one hundred forty-eight thousand, nine hundred seventy-seven".