202144431 has 8 divisors (see below), whose sum is σ = 276810544. Its totient is φ = 131120640.

The previous prime is 202144429. The next prime is 202144451. The reversal of 202144431 is 134441202.

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

It is not a de Polignac number, because 202144431 - 2¹ = 202144429 is a prime.

It is a super-2 number, since 2×202144431² = 81724741968627522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202144398 and 202144407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202144451) 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, 910450 + ... + 910671.

It is an arithmetic number, because the mean of its divisors is an integer number (34601318).

Almost surely, 2^202144431 is an apocalyptic number.

202144431 is a deficient number, since it is larger than the sum of its proper divisors (74666113).

202144431 is a wasteful number, since it uses less digits than its factorization.

202144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821161.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 202144431 is about 14217.7505604790. The cubic root of 202144431 is about 586.8862397291.

Adding to 202144431 its reverse (134441202), we get a palindrome (336585633).

The spelling of 202144431 in words is "two hundred two million, one hundred forty-four thousand, four hundred thirty-one".