142855693 has 2 divisors, whose sum is σ = 142855694. Its totient is φ = 142855692.

The previous prime is 142855679. The next prime is 142855751. The reversal of 142855693 is 396558241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 19245769 = 11118^2 + 4387^2 .

It is a cyclic number.

It is not a de Polignac number, because 142855693 - 2¹³ = 142847501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142855613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71427846 + 71427847.

It is an arithmetic number, because the mean of its divisors is an integer number (71427847).

Almost surely, 2^142855693 is an apocalyptic number.

It is an amenable number.

142855693 is a deficient number, since it is larger than the sum of its proper divisors (1).

142855693 is an equidigital number, since it uses as much as digits as its factorization.

142855693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 142855693 is about 11952.2254413143. The cubic root of 142855693 is about 522.7561900786.

It can be divided in two parts, 1428 and 55693, that added together give a square (57121 = 239²).

The spelling of 142855693 in words is "one hundred forty-two million, eight hundred fifty-five thousand, six hundred ninety-three".