1402109 has 8 divisors (see below), whose sum is σ = 1507968. Its totient is φ = 1298880.

The previous prime is 1402087. The next prime is 1402123. The reversal of 1402109 is 9012041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402129) 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, 524 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (188496).

2^1402109 is an apocalyptic number.

It is an amenable number.

1402109 is a deficient number, since it is larger than the sum of its proper divisors (105859).

1402109 is a wasteful number, since it uses less digits than its factorization.

1402109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1402109 is about 1184.1068363961. The cubic root of 1402109 is about 111.9250401904.

The spelling of 1402109 in words is "one million, four hundred two thousand, one hundred nine".