1919055542 has 8 divisors (see below), whose sum is σ = 2956382976. Its totient is φ = 933594552.

The previous prime is 1919055539. The next prime is 1919055563. The reversal of 1919055542 is 2455509191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1919055542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12966518 + ... + 12966665.

It is an arithmetic number, because the mean of its divisors is an integer number (369547872).

Almost surely, 2^1919055542 is an apocalyptic number.

1919055542 is a deficient number, since it is larger than the sum of its proper divisors (1037327434).

1919055542 is a wasteful number, since it uses less digits than its factorization.

1919055542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933222.

The product of its (nonzero) digits is 81000, while the sum is 41.

The square root of 1919055542 is about 43807.0261716086. The cubic root of 1919055542 is about 1242.6891737760.

The spelling of 1919055542 in words is "one billion, nine hundred nineteen million, fifty-five thousand, five hundred forty-two".