1654048919 has 2 divisors, whose sum is σ = 1654048920. Its totient is φ = 1654048918.

The previous prime is 1654048867. The next prime is 1654048943. The reversal of 1654048919 is 9198404561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1654048919 - 2⁸ = 1654048663 is a prime.

It is a super-2 number, since 2×1654048919² = 5471755652890137122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1654048969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827024459 + 827024460.

It is an arithmetic number, because the mean of its divisors is an integer number (827024460).

Almost surely, 2^1654048919 is an apocalyptic number.

1654048919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1654048919 is an equidigital number, since it uses as much as digits as its factorization.

1654048919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1654048919 is about 40670.0002335874. Note that the first 3 decimals coincide. The cubic root of 1654048919 is about 1182.6315203088.

The spelling of 1654048919 in words is "one billion, six hundred fifty-four million, forty-eight thousand, nine hundred nineteen".