142837693 has 4 divisors (see below), whose sum is σ = 142965340. Its totient is φ = 142710048.

The previous prime is 142837691. The next prime is 142837699. The reversal of 142837693 is 396738241.

142837693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3526884 + 139310809 = 1878^2 + 11803^2 .

It is a cyclic number.

It is not a de Polignac number, because 142837693 - 2¹ = 142837691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142837691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62130 + ... + 64387.

It is an arithmetic number, because the mean of its divisors is an integer number (35741335).

Almost surely, 2^142837693 is an apocalyptic number.

It is an amenable number.

142837693 is a deficient number, since it is larger than the sum of its proper divisors (127647).

142837693 is a wasteful number, since it uses less digits than its factorization.

142837693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127646.

The product of its digits is 217728, while the sum is 43.

The square root of 142837693 is about 11951.4724197481. The cubic root of 142837693 is about 522.7342331735.

The spelling of 142837693 in words is "one hundred forty-two million, eight hundred thirty-seven thousand, six hundred ninety-three".