1948012699 has 2 divisors, whose sum is σ = 1948012700. Its totient is φ = 1948012698.

The previous prime is 1948012691. The next prime is 1948012817. The reversal of 1948012699 is 9962108491.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9962108491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948012699 - 2³ = 1948012691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1948012691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974006349 + 974006350.

It is an arithmetic number, because the mean of its divisors is an integer number (974006350).

Almost surely, 2^1948012699 is an apocalyptic number.

1948012699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948012699 is an equidigital number, since it uses as much as digits as its factorization.

1948012699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 1948012699 is about 44136.2968428481. The cubic root of 1948012699 is about 1248.9084228316.

The spelling of 1948012699 in words is "one billion, nine hundred forty-eight million, twelve thousand, six hundred ninety-nine".