201312461 has 16 divisors (see below), whose sum is σ = 241036800. Its totient is φ = 164481408.

The previous prime is 201312457. The next prime is 201312499. The reversal of 201312461 is 164213102.

It is not a de Polignac number, because 201312461 - 2² = 201312457 is a prime.

It is a super-3 number, since 3×201312461³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9761 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (15064800).

Almost surely, 2^201312461 is an apocalyptic number.

It is an amenable number.

201312461 is a deficient number, since it is larger than the sum of its proper divisors (39724339).

201312461 is a wasteful number, since it uses less digits than its factorization.

201312461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12668.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 201312461 is about 14188.4622493067. The cubic root of 201312461 is about 586.0799793378.

Adding to 201312461 its reverse (164213102), we get a palindrome (365525563).

The spelling of 201312461 in words is "two hundred one million, three hundred twelve thousand, four hundred sixty-one".