15140948909 has 2 divisors, whose sum is σ = 15140948910. Its totient is φ = 15140948908.

The previous prime is 15140948881. The next prime is 15140948939. The reversal of 15140948909 is 90984904151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8934975625 + 6205973284 = 94525^2 + 78778^2 .

It is an emirp because it is prime and its reverse (90984904151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15140948909 - 2¹² = 15140944813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15140948939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570474454 + 7570474455.

It is an arithmetic number, because the mean of its divisors is an integer number (7570474455).

Almost surely, 2^15140948909 is an apocalyptic number.

It is an amenable number.

15140948909 is a deficient number, since it is larger than the sum of its proper divisors (1).

15140948909 is an equidigital number, since it uses as much as digits as its factorization.

15140948909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 15140948909 in words is "fifteen billion, one hundred forty million, nine hundred forty-eight thousand, nine hundred nine".