142400450161 has 2 divisors, whose sum is σ = 142400450162. Its totient is φ = 142400450160.

The previous prime is 142400450119. The next prime is 142400450177. The reversal of 142400450161 is 161054004241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94053235761 + 48347214400 = 306681^2 + 219880^2 .

It is a cyclic number.

It is not a de Polignac number, because 142400450161 - 2⁷ = 142400450033 is a prime.

It is not a weakly prime, because it can be changed into another prime (142400450111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200225080 + 71200225081.

It is an arithmetic number, because the mean of its divisors is an integer number (71200225081).

Almost surely, 2^142400450161 is an apocalyptic number.

It is an amenable number.

142400450161 is a deficient number, since it is larger than the sum of its proper divisors (1).

142400450161 is an equidigital number, since it uses as much as digits as its factorization.

142400450161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 142400450161 in words is "one hundred forty-two billion, four hundred million, four hundred fifty thousand, one hundred sixty-one".