201090461 has 16 divisors (see below), whose sum is σ = 237128640. Its totient is φ = 168117120.

The previous prime is 201090419. The next prime is 201090469. The reversal of 201090461 is 164090102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201090461 - 2¹⁴ = 201074077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201090469) 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, 37985 + ... + 42953.

It is an arithmetic number, because the mean of its divisors is an integer number (14820540).

Almost surely, 2^201090461 is an apocalyptic number.

It is an amenable number.

201090461 is a deficient number, since it is larger than the sum of its proper divisors (36038179).

201090461 is a wasteful number, since it uses less digits than its factorization.

201090461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 201090461 is about 14180.6368333725. The cubic root of 201090461 is about 585.8644642610.

The spelling of 201090461 in words is "two hundred one million, ninety thousand, four hundred sixty-one".