268202139 has 8 divisors (see below), whose sum is σ = 362940480. Its totient is φ = 176132616.

The previous prime is 268202117. The next prime is 268202147. The reversal of 268202139 is 931202862.

It is a happy number.

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

It is not a de Polignac number, because 268202139 - 2⁸ = 268201883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268202189) 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, 666969 + ... + 667370.

It is an arithmetic number, because the mean of its divisors is an integer number (45367560).

Almost surely, 2^268202139 is an apocalyptic number.

268202139 is a deficient number, since it is larger than the sum of its proper divisors (94738341).

268202139 is a wasteful number, since it uses less digits than its factorization.

268202139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334409.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 268202139 is about 16376.8781823643. The cubic root of 268202139 is about 644.8926280016.

The spelling of 268202139 in words is "two hundred sixty-eight million, two hundred two thousand, one hundred thirty-nine".