1954007019 has 12 divisors (see below), whose sum is σ = 2822916096. Its totient is φ = 1302458352.

The previous prime is 1954006997. The next prime is 1954007053. The reversal of 1954007019 is 9107004591.

It is not a de Polignac number, because 1954007019 - 2⁷ = 1954006891 is a prime.

It is a super-2 number, since 2×1954007019² = 7636286860602532722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1954007059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56854 + ... + 84500.

It is an arithmetic number, because the mean of its divisors is an integer number (235243008).

Almost surely, 2^1954007019 is an apocalyptic number.

1954007019 is a deficient number, since it is larger than the sum of its proper divisors (868909077).

1954007019 is a wasteful number, since it uses less digits than its factorization.

1954007019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35506 (or 35503 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1954007019 is about 44204.1516036673. The cubic root of 1954007019 is about 1250.1881357359.

The spelling of 1954007019 in words is "one billion, nine hundred fifty-four million, seven thousand, nineteen".