201087939 has 8 divisors (see below), whose sum is σ = 288741712. Its totient is φ = 123746400.

The previous prime is 201087937. The next prime is 201087941. The reversal of 201087939 is 939780102.

It is an interprime number because it is at equal distance from previous prime (201087937) and next prime (201087941).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201087939 - 2¹ = 201087937 is a prime.

It is a super-2 number, since 2×201087939² = 80872718422535442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5156101 = 201087939 / (2 + 0 + 1 + 0 + 8 + 7 + 9 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201087897 and 201087906.

It is not an unprimeable number, because it can be changed into a prime (201087937) 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, 2578012 + ... + 2578089.

It is an arithmetic number, because the mean of its divisors is an integer number (36092714).

Almost surely, 2^201087939 is an apocalyptic number.

201087939 is a deficient number, since it is larger than the sum of its proper divisors (87653773).

201087939 is a wasteful number, since it uses less digits than its factorization.

201087939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156117.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 201087939 is about 14180.5479090196. The cubic root of 201087939 is about 585.8620150211.

The spelling of 201087939 in words is "two hundred one million, eighty-seven thousand, nine hundred thirty-nine".