201488631 has 16 divisors (see below), whose sum is σ = 276134400. Its totient is φ = 130635648.

The previous prime is 201488629. The next prime is 201488633. The reversal of 201488631 is 136884102.

201488631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201488629) and next prime (201488633).

It is not a de Polignac number, because 201488631 - 2¹ = 201488629 is a prime.

It is a super-2 number, since 2×201488631² = 81195336844508322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201488592 and 201488601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201488633) 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, 9535 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (17258400).

Almost surely, 2^201488631 is an apocalyptic number.

201488631 is a deficient number, since it is larger than the sum of its proper divisors (74645769).

201488631 is a wasteful number, since it uses less digits than its factorization.

201488631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 201488631 is about 14194.6691049844. The cubic root of 201488631 is about 586.2508904444.

The spelling of 201488631 in words is "two hundred one million, four hundred eighty-eight thousand, six hundred thirty-one".