142309435 has 16 divisors (see below), whose sum is σ = 173774016. Its totient is φ = 111863808.

The previous prime is 142309423. The next prime is 142309439. The reversal of 142309435 is 534903241.

It is a cyclic number.

It is not a de Polignac number, because 142309435 - 2²¹ = 140212283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142309397 and 142309406.

It is not an unprimeable number, because it can be changed into a prime (142309439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69547 + ... + 71563.

It is an arithmetic number, because the mean of its divisors is an integer number (10860876).

Almost surely, 2^142309435 is an apocalyptic number.

142309435 is a deficient number, since it is larger than the sum of its proper divisors (31464581).

142309435 is a wasteful number, since it uses less digits than its factorization.

142309435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 142309435 is about 11929.3518264824. The cubic root of 142309435 is about 522.0890261296.

The spelling of 142309435 in words is "one hundred forty-two million, three hundred nine thousand, four hundred thirty-five".