35720139 has 16 divisors (see below), whose sum is σ = 58618112. Its totient is φ = 18841248.

The previous prime is 35720137. The next prime is 35720149. The reversal of 35720139 is 93102753.

It is not a de Polignac number, because 35720139 - 2¹ = 35720137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (35720137) 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 15 ways as a sum of consecutive naturals, for example, 65149 + ... + 65694.

It is an arithmetic number, because the mean of its divisors is an integer number (3663632).

Almost surely, 2^35720139 is an apocalyptic number.

35720139 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

35720139 is a deficient number, since it is larger than the sum of its proper divisors (22897973).

35720139 is a wasteful number, since it uses less digits than its factorization.

35720139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130866.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 35720139 is about 5976.6327476264. The cubic root of 35720139 is about 329.3348678220.

The spelling of 35720139 in words is "thirty-five million, seven hundred twenty thousand, one hundred thirty-nine".