164702139 has 16 divisors (see below), whose sum is σ = 251209728. Its totient is φ = 94027392.

The previous prime is 164702119. The next prime is 164702141. The reversal of 164702139 is 931207461.

It is not a de Polignac number, because 164702139 - 2¹⁹ = 164177851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164702119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24214 + ... + 30260.

It is an arithmetic number, because the mean of its divisors is an integer number (15700608).

Almost surely, 2^164702139 is an apocalyptic number.

164702139 is a deficient number, since it is larger than the sum of its proper divisors (86507589).

164702139 is a wasteful number, since it uses less digits than its factorization.

164702139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 164702139 is about 12833.6331177107. The cubic root of 164702139 is about 548.1504140272.

The spelling of 164702139 in words is "one hundred sixty-four million, seven hundred two thousand, one hundred thirty-nine".