202145870 has 8 divisors (see below), whose sum is σ = 363862584. Its totient is φ = 80858344.

The previous prime is 202145851. The next prime is 202145897. The reversal of 202145870 is 78541202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10107284 + ... + 10107303.

It is an arithmetic number, because the mean of its divisors is an integer number (45482823).

Almost surely, 2^202145870 is an apocalyptic number.

202145870 is a deficient number, since it is larger than the sum of its proper divisors (161716714).

202145870 is a wasteful number, since it uses less digits than its factorization.

202145870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214594.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 202145870 is about 14217.8011661438. The cubic root of 202145870 is about 586.8876323428.

The spelling of 202145870 in words is "two hundred two million, one hundred forty-five thousand, eight hundred seventy".