1322139 has 32 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 669312.

The previous prime is 1322137. The next prime is 1322143. The reversal of 1322139 is 9312231.

It is a happy number.

It is not a de Polignac number, because 1322139 - 2¹ = 1322137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1322137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7834 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2^1322139 is an apocalyptic number.

1322139 is a deficient number, since it is larger than the sum of its proper divisors (935781).

1322139 is a wasteful number, since it uses less digits than its factorization.

1322139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its digits is 324, while the sum is 21.

The square root of 1322139 is about 1149.8430327658. The cubic root of 1322139 is about 109.7553516035.

The spelling of 1322139 in words is "one million, three hundred twenty-two thousand, one hundred thirty-nine".