139852259 has 6 divisors (see below), whose sum is σ = 146197716. Its totient is φ = 133771220.

The previous prime is 139852241. The next prime is 139852291. The reversal of 139852259 is 952258931.

It is a de Polignac number, because none of the positive numbers 2^k-139852259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139852459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131657 + ... + 132714.

It is an arithmetic number, because the mean of its divisors is an integer number (24366286).

Almost surely, 2^139852259 is an apocalyptic number.

139852259 is a deficient number, since it is larger than the sum of its proper divisors (6345457).

139852259 is an equidigital number, since it uses as much as digits as its factorization.

139852259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264417 (or 264394 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 139852259 is about 11825.9147214919. The cubic root of 139852259 is about 519.0666924986.

The spelling of 139852259 in words is "one hundred thirty-nine million, eight hundred fifty-two thousand, two hundred fifty-nine".