201502139 has 8 divisors (see below), whose sum is σ = 220238208. Its totient is φ = 183530880.

The previous prime is 201502127. The next prime is 201502153. The reversal of 201502139 is 931205102.

201502139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 201502139 - 2²⁰ = 200453563 is a prime.

It is a super-3 number, since 3×201502139³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201502199) 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, 190652 + ... + 191705.

It is an arithmetic number, because the mean of its divisors is an integer number (27529776).

Almost surely, 2^201502139 is an apocalyptic number.

201502139 is a deficient number, since it is larger than the sum of its proper divisors (18736069).

201502139 is a wasteful number, since it uses less digits than its factorization.

201502139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382405.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 201502139 is about 14195.1449094400. The cubic root of 201502139 is about 586.2639911009.

The spelling of 201502139 in words is "two hundred one million, five hundred two thousand, one hundred thirty-nine".