1341640909 has 16 divisors (see below), whose sum is σ = 1621380096. Its totient is φ = 1085731200.

The previous prime is 1341640907. The next prime is 1341640973. The reversal of 1341640909 is 9090461431.

It is a cyclic number.

It is not a de Polignac number, because 1341640909 - 2¹ = 1341640907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341640903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66502 + ... + 84295.

It is an arithmetic number, because the mean of its divisors is an integer number (101336256).

Almost surely, 2^1341640909 is an apocalyptic number.

It is an amenable number.

1341640909 is a deficient number, since it is larger than the sum of its proper divisors (279739187).

1341640909 is a wasteful number, since it uses less digits than its factorization.

1341640909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150876.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1341640909 is about 36628.4166870478. The cubic root of 1341640909 is about 1102.9236025947.

The spelling of 1341640909 in words is "one billion, three hundred forty-one million, six hundred forty thousand, nine hundred nine".