142203471 has 8 divisors (see below), whose sum is σ = 191344560. Its totient is φ = 93932352.

The previous prime is 142203449. The next prime is 142203491. The reversal of 142203471 is 174302241.

It is a happy number.

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

It is not a de Polignac number, because 142203471 - 2⁶ = 142203407 is a prime.

It is a super-3 number, since 3×142203471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142203401) 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, 217110 + ... + 217763.

It is an arithmetic number, because the mean of its divisors is an integer number (23918070).

Almost surely, 2^142203471 is an apocalyptic number.

142203471 is a deficient number, since it is larger than the sum of its proper divisors (49141089).

142203471 is a wasteful number, since it uses less digits than its factorization.

142203471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434985.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 142203471 is about 11924.9096851926. The cubic root of 142203471 is about 521.9594109747.

The spelling of 142203471 in words is "one hundred forty-two million, two hundred three thousand, four hundred seventy-one".