201248943 has 16 divisors (see below), whose sum is σ = 311694336. Its totient is φ = 113113440.

The previous prime is 201248939. The next prime is 201248947. The reversal of 201248943 is 349842102.

It is an interprime number because it is at equal distance from previous prime (201248939) and next prime (201248947).

It is not a de Polignac number, because 201248943 - 2² = 201248939 is a prime.

It is a super-2 number, since 2×201248943² = 81002274117234498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201248947) 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, 77271 + ... + 79832.

It is an arithmetic number, because the mean of its divisors is an integer number (19480896).

Almost surely, 2^201248943 is an apocalyptic number.

201248943 is a deficient number, since it is larger than the sum of its proper divisors (110445393).

201248943 is a wasteful number, since it uses less digits than its factorization.

201248943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157174.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 201248943 is about 14186.2237047073. The cubic root of 201248943 is about 586.0183329733.

The spelling of 201248943 in words is "two hundred one million, two hundred forty-eight thousand, nine hundred forty-three".