1479621109 has 2 divisors, whose sum is σ = 1479621110. Its totient is φ = 1479621108.

The previous prime is 1479621097. The next prime is 1479621127. The reversal of 1479621109 is 9011269741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976875025 + 502746084 = 31255^2 + 22422^2 .

It is an emirp because it is prime and its reverse (9011269741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1479621109 - 2¹¹ = 1479619061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1479621149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739810554 + 739810555.

It is an arithmetic number, because the mean of its divisors is an integer number (739810555).

Almost surely, 2^1479621109 is an apocalyptic number.

It is an amenable number.

1479621109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1479621109 is an equidigital number, since it uses as much as digits as its factorization.

1479621109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1479621109 is about 38465.8434068460. The cubic root of 1479621109 is about 1139.5065857431.

The spelling of 1479621109 in words is "one billion, four hundred seventy-nine million, six hundred twenty-one thousand, one hundred nine".