122161503 has 8 divisors (see below), whose sum is σ = 163027888. Its totient is φ = 81368064.

The previous prime is 122161493. The next prime is 122161519. The reversal of 122161503 is 305161221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122161503 - 2¹⁸ = 121899359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122161503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122161573) 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 7 ways as a sum of consecutive naturals, for example, 14200 + ... + 21117.

It is an arithmetic number, because the mean of its divisors is an integer number (20378486).

Almost surely, 2^122161503 is an apocalyptic number.

122161503 is a deficient number, since it is larger than the sum of its proper divisors (40866385).

122161503 is a wasteful number, since it uses less digits than its factorization.

122161503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36473.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 122161503 is about 11052.6694965515. The cubic root of 122161503 is about 496.1863230247.

The spelling of 122161503 in words is "one hundred twenty-two million, one hundred sixty-one thousand, five hundred three".