165139103 has 16 divisors (see below), whose sum is σ = 181331136. Its totient is φ = 149909760.

The previous prime is 165139097. The next prime is 165139109. The reversal of 165139103 is 301931561.

165139103 = T₁₄₇ + T₁₄₈ + ... + T₉₉₇.

It is an interprime number because it is at equal distance from previous prime (165139097) and next prime (165139109).

It is a cyclic number.

It is not a de Polignac number, because 165139103 - 2¹⁰ = 165138079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165139109) 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, 32525 + ... + 37257.

It is an arithmetic number, because the mean of its divisors is an integer number (11333196).

Almost surely, 2^165139103 is an apocalyptic number.

165139103 is a deficient number, since it is larger than the sum of its proper divisors (16192033).

165139103 is a wasteful number, since it uses less digits than its factorization.

165139103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 165139103 is about 12850.6460148897. The cubic root of 165139103 is about 548.6347438784.

The spelling of 165139103 in words is "one hundred sixty-five million, one hundred thirty-nine thousand, one hundred three".