142400161457 has 2 divisors, whose sum is σ = 142400161458. Its totient is φ = 142400161456.

The previous prime is 142400161373. The next prime is 142400161483. The reversal of 142400161457 is 754161004241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127334071921 + 15066089536 = 356839^2 + 122744^2 .

It is a cyclic number.

It is not a de Polignac number, because 142400161457 - 2¹⁰ = 142400160433 is a prime.

It is not a weakly prime, because it can be changed into another prime (142400161157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200080728 + 71200080729.

It is an arithmetic number, because the mean of its divisors is an integer number (71200080729).

Almost surely, 2^142400161457 is an apocalyptic number.

It is an amenable number.

142400161457 is a deficient number, since it is larger than the sum of its proper divisors (1).

142400161457 is an equidigital number, since it uses as much as digits as its factorization.

142400161457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

Adding to 142400161457 its reverse (754161004241), we get a palindrome (896561165698).

The spelling of 142400161457 in words is "one hundred forty-two billion, four hundred million, one hundred sixty-one thousand, four hundred fifty-seven".