201291427 has 8 divisors (see below), whose sum is σ = 207520992. Its totient is φ = 195124800.

The previous prime is 201291397. The next prime is 201291437. The reversal of 201291427 is 724192102.

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 201291427 - 2¹⁹ = 200767139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201291395 and 201291404.

It is not an unprimeable number, because it can be changed into a prime (201291437) 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, 9199 + ... + 22072.

It is an arithmetic number, because the mean of its divisors is an integer number (25940124).

Almost surely, 2^201291427 is an apocalyptic number.

201291427 is a deficient number, since it is larger than the sum of its proper divisors (6229565).

201291427 is a wasteful number, since it uses less digits than its factorization.

201291427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31469.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 201291427 is about 14187.7209938735. The cubic root of 201291427 is about 586.0595665666.

It can be divided in two parts, 2012 and 91427, that added together give a palindrome (93439).

The spelling of 201291427 in words is "two hundred one million, two hundred ninety-one thousand, four hundred twenty-seven".