142473419 has 16 divisors (see below), whose sum is σ = 165696000. Its totient is φ = 121137120.

The previous prime is 142473371. The next prime is 142473449. The reversal of 142473419 is 914374241.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142473419 is a prime.

It is a super-2 number, since 2×142473419² = 40597350243099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142473449) 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, 12197 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (10356000).

Almost surely, 2^142473419 is an apocalyptic number.

142473419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

142473419 is a deficient number, since it is larger than the sum of its proper divisors (23222581).

142473419 is a wasteful number, since it uses less digits than its factorization.

142473419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8738.

The product of its digits is 24192, while the sum is 35.

The square root of 142473419 is about 11936.2229788154. Note that the first 3 decimals coincide. The cubic root of 142473419 is about 522.2894845726.

The spelling of 142473419 in words is "one hundred forty-two million, four hundred seventy-three thousand, four hundred nineteen".