142491467 has 8 divisors (see below), whose sum is σ = 151393536. Its totient is φ = 133647232.

The previous prime is 142491457. The next prime is 142491511. The reversal of 142491467 is 764194241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142491467 - 2¹⁴ = 142475083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142491467.

It is not an unprimeable number, because it can be changed into a prime (142491457) 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 7 ways as a sum of consecutive naturals, for example, 9323 + ... + 19284.

It is an arithmetic number, because the mean of its divisors is an integer number (18924192).

Almost surely, 2^142491467 is an apocalyptic number.

142491467 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142491467 is a deficient number, since it is larger than the sum of its proper divisors (8902069).

142491467 is a wasteful number, since it uses less digits than its factorization.

142491467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28917.

The product of its digits is 48384, while the sum is 38.

The square root of 142491467 is about 11936.9789729228. The cubic root of 142491467 is about 522.3115375345.

The spelling of 142491467 in words is "one hundred forty-two million, four hundred ninety-one thousand, four hundred sixty-seven".