1402121 has 8 divisors (see below), whose sum is σ = 1657920. Its totient is φ = 1160208.

The previous prime is 1402087. The next prime is 1402123. The reversal of 1402121 is 1212041.

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

It is a de Polignac number, because none of the positive numbers 2^k-1402121 is a prime.

It is a Duffinian number.

1402121 is a modest number, since divided by 2121 gives 140 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1402123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (207240).

2^1402121 is an apocalyptic number.

It is an amenable number.

1402121 is a deficient number, since it is larger than the sum of its proper divisors (255799).

1402121 is an equidigital number, since it uses as much as digits as its factorization.

1402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1402121 is about 1184.1119034956. Note that the first 3 decimals coincide. The cubic root of 1402121 is about 111.9253594943.

Adding to 1402121 its reverse (1212041), we get a palindrome (2614162).

The spelling of 1402121 in words is "one million, four hundred two thousand, one hundred twenty-one".