122870 has 16 divisors (see below), whose sum is σ = 241488. Its totient is φ = 44640.

The previous prime is 122869. The next prime is 122887. The reversal of 122870 is 78221.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (15093).

2¹²²⁸⁷⁰ is an apocalyptic number.

122870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122870 is a deficient number, since it is larger than the sum of its proper divisors (118618).

122870 is a wasteful number, since it uses less digits than its factorization.

122870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 122870 is about 350.5281729048. The cubic root of 122870 is about 49.7143714335.

It can be divided in two parts, 12 and 2870, that added together give a palindrome (2882).

The spelling of 122870 in words is "one hundred twenty-two thousand, eight hundred seventy".