142039773 has 12 divisors (see below), whose sum is σ = 205356060. Its totient is φ = 94606656.

The previous prime is 142039759. The next prime is 142039813. The reversal of 142039773 is 377930241.

It can be written as a sum of positive squares in 2 ways, for example, as 120165444 + 21874329 = 10962^2 + 4677^2 .

It is not a de Polignac number, because 142039773 - 2⁵ = 142039741 is a prime.

It is a super-2 number, since 2×142039773² = 40350594227783058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142039273) 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 11 ways as a sum of consecutive naturals, for example, 4123 + ... + 17351.

It is an arithmetic number, because the mean of its divisors is an integer number (17113005).

Almost surely, 2^142039773 is an apocalyptic number.

It is an amenable number.

142039773 is a deficient number, since it is larger than the sum of its proper divisors (63316287).

142039773 is a wasteful number, since it uses less digits than its factorization.

142039773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428 (or 14425 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 142039773 is about 11918.0440089807. The cubic root of 142039773 is about 521.7590489669.

The spelling of 142039773 in words is "one hundred forty-two million, thirty-nine thousand, seven hundred seventy-three".