1907342909 has 2 divisors, whose sum is σ = 1907342910. Its totient is φ = 1907342908.

The previous prime is 1907342887. The next prime is 1907342923. The reversal of 1907342909 is 9092437091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1883820409 + 23522500 = 43403^2 + 4850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1907342909 - 2¹² = 1907338813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1907342909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1907342989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953671454 + 953671455.

It is an arithmetic number, because the mean of its divisors is an integer number (953671455).

Almost surely, 2^1907342909 is an apocalyptic number.

It is an amenable number.

1907342909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1907342909 is an equidigital number, since it uses as much as digits as its factorization.

1907342909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1907342909 is about 43673.1371554643. The cubic root of 1907342909 is about 1240.1558313090.

The spelling of 1907342909 in words is "one billion, nine hundred seven million, three hundred forty-two thousand, nine hundred nine".