2139802 has 8 divisors (see below), whose sum is σ = 3668256. Its totient is φ = 917052.

The previous prime is 2139757. The next prime is 2139811. The reversal of 2139802 is 2089312.

2139802 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76408 + ... + 76435.

It is an arithmetic number, because the mean of its divisors is an integer number (458532).

2^2139802 is an apocalyptic number.

2139802 is a deficient number, since it is larger than the sum of its proper divisors (1528454).

2139802 is a wasteful number, since it uses less digits than its factorization.

2139802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152852.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2139802 is about 1462.8062072606. The cubic root of 2139802 is about 128.8618997635.

The spelling of 2139802 in words is "two million, one hundred thirty-nine thousand, eight hundred two".