1954022359 has 2 divisors, whose sum is σ = 1954022360. Its totient is φ = 1954022358.

The previous prime is 1954022351. The next prime is 1954022401. The reversal of 1954022359 is 9532204591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1954022359 - 2³ = 1954022351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954022351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977011179 + 977011180.

It is an arithmetic number, because the mean of its divisors is an integer number (977011180).

Almost surely, 2^1954022359 is an apocalyptic number.

1954022359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954022359 is an equidigital number, since it uses as much as digits as its factorization.

1954022359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 1954022359 is about 44204.3251164408. The cubic root of 1954022359 is about 1250.1914072758.

The spelling of 1954022359 in words is "one billion, nine hundred fifty-four million, twenty-two thousand, three hundred fifty-nine".