202142147 has 8 divisors (see below), whose sum is σ = 211226400. Its totient is φ = 193082560.

The previous prime is 202142131. The next prime is 202142167. The reversal of 202142147 is 741241202.

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 202142147 - 2⁴ = 202142131 is a prime.

It is a super-2 number, since 2×202142147² = 81722895187539218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (202142117) 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, 11729 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (26403300).

Almost surely, 2^202142147 is an apocalyptic number.

202142147 is a deficient number, since it is larger than the sum of its proper divisors (9084253).

202142147 is a wasteful number, since it uses less digits than its factorization.

202142147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12333.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 202142147 is about 14217.6702381227. The cubic root of 202142147 is about 586.8840293405.

Adding to 202142147 its reverse (741241202), we get a palindrome (943383349).

The spelling of 202142147 in words is "two hundred two million, one hundred forty-two thousand, one hundred forty-seven".