142509046 has 16 divisors (see below), whose sum is σ = 222622848. Its totient is φ = 68342400.

The previous prime is 142509019. The next prime is 142509053. The reversal of 142509046 is 640905241.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 142508999 and 142509017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3165 + ... + 17176.

It is an arithmetic number, because the mean of its divisors is an integer number (13913928).

Almost surely, 2^142509046 is an apocalyptic number.

142509046 is a deficient number, since it is larger than the sum of its proper divisors (80113802).

142509046 is a wasteful number, since it uses less digits than its factorization.

142509046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20487.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 142509046 is about 11937.7152755458. The cubic root of 142509046 is about 522.3330156322. Note that the first 3 decimals are identical.

The spelling of 142509046 in words is "one hundred forty-two million, five hundred nine thousand, forty-six".