139783399 has 8 divisors (see below), whose sum is σ = 168160640. Its totient is φ = 113508216.

The previous prime is 139783381. The next prime is 139783417. The reversal of 139783399 is 993387931.

It is an interprime number because it is at equal distance from previous prime (139783381) and next prime (139783417).

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 139783399 - 2⁷ = 139783271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139783339) 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, 525369 + ... + 525634.

It is an arithmetic number, because the mean of its divisors is an integer number (21020080).

Almost surely, 2^139783399 is an apocalyptic number.

139783399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

139783399 is a deficient number, since it is larger than the sum of its proper divisors (28377241).

139783399 is a wasteful number, since it uses less digits than its factorization.

139783399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051029.

The product of its digits is 1102248, while the sum is 52.

The square root of 139783399 is about 11823.0029603312. The cubic root of 139783399 is about 518.9814863898.

The spelling of 139783399 in words is "one hundred thirty-nine million, seven hundred eighty-three thousand, three hundred ninety-nine".