202142545451 has 16 divisors (see below), whose sum is σ = 253076382720. Its totient is φ = 156854604480.

The previous prime is 202142545433. The next prime is 202142545453. The reversal of 202142545451 is 154545241202.

It is not a de Polignac number, because 202142545451 - 2¹⁰ = 202142544427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202142545453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5473706 + ... + 5510511.

It is an arithmetic number, because the mean of its divisors is an integer number (15817273920).

Almost surely, 2^202142545451 is an apocalyptic number.

202142545451 is a deficient number, since it is larger than the sum of its proper divisors (50933837269).

202142545451 is a wasteful number, since it uses less digits than its factorization.

202142545451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10984474.

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 202142545451 its reverse (154545241202), we get a palindrome (356687786653).

The spelling of 202142545451 in words is "two hundred two billion, one hundred forty-two million, five hundred forty-five thousand, four hundred fifty-one".