142361057 has 2 divisors, whose sum is σ = 142361058. Its totient is φ = 142361056.

The previous prime is 142361047. The next prime is 142361069. The reversal of 142361057 is 750163241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138203536 + 4157521 = 11756^2 + 2039^2 .

It is a cyclic number.

It is not a de Polignac number, because 142361057 - 2¹⁰ = 142360033 is a prime.

It is a super-4 number, since 4×142361057⁴ (a number of 34 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142361047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71180528 + 71180529.

It is an arithmetic number, because the mean of its divisors is an integer number (71180529).

Almost surely, 2^142361057 is an apocalyptic number.

It is an amenable number.

142361057 is a deficient number, since it is larger than the sum of its proper divisors (1).

142361057 is an equidigital number, since it uses as much as digits as its factorization.

142361057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 142361057 is about 11931.5152851597. The cubic root of 142361057 is about 522.1521468486.

The spelling of 142361057 in words is "one hundred forty-two million, three hundred sixty-one thousand, fifty-seven".