139335401 has 16 divisors (see below), whose sum is σ = 148400640. Its totient is φ = 130603200.

The previous prime is 139335397. The next prime is 139335409. The reversal of 139335401 is 104533931.

It is a cyclic number.

It is not a de Polignac number, because 139335401 - 2² = 139335397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139335409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205475 + ... + 206151.

It is an arithmetic number, because the mean of its divisors is an integer number (9275040).

Almost surely, 2^139335401 is an apocalyptic number.

It is an amenable number.

139335401 is a deficient number, since it is larger than the sum of its proper divisors (9065239).

139335401 is a wasteful number, since it uses less digits than its factorization.

139335401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 139335401 is about 11804.0417230710. The cubic root of 139335401 is about 518.4264574454.

The spelling of 139335401 in words is "one hundred thirty-nine million, three hundred thirty-five thousand, four hundred one".