139699005 has 16 divisors (see below), whose sum is σ = 226582080. Its totient is φ = 73484928.

The previous prime is 139698991. The next prime is 139699121. The reversal of 139699005 is 500996931.

139699005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139699005 - 2⁸ = 139698749 is a prime.

It is a Curzon 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, 62695 + ... + 64884.

It is an arithmetic number, because the mean of its divisors is an integer number (14161380).

Almost surely, 2^139699005 is an apocalyptic number.

139699005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139699005 is a deficient number, since it is larger than the sum of its proper divisors (86883075).

139699005 is a wasteful number, since it uses less digits than its factorization.

139699005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127660.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 139699005 is about 11819.4333620525. The cubic root of 139699005 is about 518.8770206203.

The spelling of 139699005 in words is "one hundred thirty-nine million, six hundred ninety-nine thousand, five".