142073471 has 8 divisors (see below), whose sum is σ = 150883200. Its totient is φ = 133314048.

The previous prime is 142073441. The next prime is 142073479. The reversal of 142073471 is 174370241.

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 142073471 - 2²² = 137879167 is a prime.

It is a super-3 number, since 3×142073471³ (a number of 25 digits) contains 333 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 (142073479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6671 + ... + 18128.

It is an arithmetic number, because the mean of its divisors is an integer number (18860400).

Almost surely, 2^142073471 is an apocalyptic number.

142073471 is a deficient number, since it is larger than the sum of its proper divisors (8809729).

142073471 is a wasteful number, since it uses less digits than its factorization.

142073471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25153.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 142073471 is about 11919.4576638369. The cubic root of 142073471 is about 521.8003070029.

The spelling of 142073471 in words is "one hundred forty-two million, seventy-three thousand, four hundred seventy-one".