142309069 has 16 divisors (see below), whose sum is σ = 171642880. Its totient is φ = 115259760.

The previous prime is 142309049. The next prime is 142309093. The reversal of 142309069 is 960903241.

It is not a de Polignac number, because 142309069 - 2⁹ = 142308557 is a prime.

It is a super-2 number, since 2×142309069² = 40503742239293522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142309009) 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 in 15 ways as a sum of consecutive naturals, for example, 60424 + ... + 62734.

It is an arithmetic number, because the mean of its divisors is an integer number (10727680).

Almost surely, 2^142309069 is an apocalyptic number.

142309069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142309069 is a deficient number, since it is larger than the sum of its proper divisors (29333811).

142309069 is a wasteful number, since it uses less digits than its factorization.

142309069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 142309069 is about 11929.3364861588. The cubic root of 142309069 is about 522.0885785492.

The spelling of 142309069 in words is "one hundred forty-two million, three hundred nine thousand, sixty-nine".