201126478 has 12 divisors (see below), whose sum is σ = 350945352. Its totient is φ = 86197020.

The previous prime is 201126391. The next prime is 201126479. The reversal of 201126478 is 874621102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201126479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026058 + ... + 1026253.

It is an arithmetic number, because the mean of its divisors is an integer number (29245446).

Almost surely, 2^201126478 is an apocalyptic number.

201126478 is a deficient number, since it is larger than the sum of its proper divisors (149818874).

201126478 is a wasteful number, since it uses less digits than its factorization.

201126478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052327 (or 2052320 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 201126478 is about 14181.9067124276. The cubic root of 201126478 is about 585.8994399309.

Subtracting from 201126478 its product of nonzero digits (5376), we obtain a palindrome (201121102).

The spelling of 201126478 in words is "two hundred one million, one hundred twenty-six thousand, four hundred seventy-eight".