139051101 has 32 divisors (see below), whose sum is σ = 225192960. Its totient is φ = 74549376.

The previous prime is 139051093. The next prime is 139051103. The reversal of 139051101 is 101150931.

It is not a de Polignac number, because 139051101 - 2³ = 139051093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139051103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41065 + ... + 44321.

It is an arithmetic number, because the mean of its divisors is an integer number (7037280).

Almost surely, 2^139051101 is an apocalyptic number.

It is an amenable number.

139051101 is a deficient number, since it is larger than the sum of its proper divisors (86141859).

139051101 is a wasteful number, since it uses less digits than its factorization.

139051101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 139051101 is about 11791.9930885326. The cubic root of 139051101 is about 518.0736181848.

The spelling of 139051101 in words is "one hundred thirty-nine million, fifty-one thousand, one hundred one".