139819822 has 32 divisors (see below), whose sum is σ = 225388800. Its totient is φ = 64862208.

The previous prime is 139819819. The next prime is 139819847. The reversal of 139819822 is 228918931.

It is a super-2 number, since 2×139819822² = 39099165248223368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543918 + ... + 544174.

It is an arithmetic number, because the mean of its divisors is an integer number (7043400).

Almost surely, 2^139819822 is an apocalyptic number.

139819822 is a deficient number, since it is larger than the sum of its proper divisors (85568978).

139819822 is a wasteful number, since it uses less digits than its factorization.

139819822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 62208, while the sum is 43.

The square root of 139819822 is about 11824.5432047077. The cubic root of 139819822 is about 519.0265590313.

The spelling of 139819822 in words is "one hundred thirty-nine million, eight hundred nineteen thousand, eight hundred twenty-two".