1409149679 has 4 divisors (see below), whose sum is σ = 1610456784. Its totient is φ = 1207842576.

The previous prime is 1409149673. The next prime is 1409149697. The reversal of 1409149679 is 9769419041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1409149679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409149673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100653542 + ... + 100653555.

It is an arithmetic number, because the mean of its divisors is an integer number (402614196).

Almost surely, 2^1409149679 is an apocalyptic number.

1409149679 is a deficient number, since it is larger than the sum of its proper divisors (201307105).

1409149679 is an equidigital number, since it uses as much as digits as its factorization.

1409149679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201307104.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1409149679 is about 37538.6424767865. The cubic root of 1409149679 is about 1121.1207104219.

The spelling of 1409149679 in words is "one billion, four hundred nine million, one hundred forty-nine thousand, six hundred seventy-nine".