1954447059 has 4 divisors (see below), whose sum is σ = 2605929416. Its totient is φ = 1302964704.

The previous prime is 1954447021. The next prime is 1954447067. The reversal of 1954447059 is 9507444591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1954447059 - 2¹³ = 1954438867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1954446999 and 1954447017.

It is not an unprimeable number, because it can be changed into a prime (1954447009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325741174 + ... + 325741179.

It is an arithmetic number, because the mean of its divisors is an integer number (651482354).

Almost surely, 2^1954447059 is an apocalyptic number.

1954447059 is a deficient number, since it is larger than the sum of its proper divisors (651482357).

1954447059 is an equidigital number, since it uses as much as digits as its factorization.

1954447059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651482356.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 1954447059 is about 44209.1286840173. The cubic root of 1954447059 is about 1250.2819756403.

The spelling of 1954447059 in words is "one billion, nine hundred fifty-four million, four hundred forty-seven thousand, fifty-nine".