1919025152 has 90 divisors (see below), whose sum is σ = 4221813015. Its totient is φ = 872284160.

The previous prime is 1919025139. The next prime is 1919025167. The reversal of 1919025152 is 2515209191.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 959512576 + 959512576 = 30976^2 + 30976^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30976.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 174456827 + ... + 174456837.

Almost surely, 2^1919025152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1919025152

1919025152 is an abundant number, since it is smaller than the sum of its proper divisors (2302787863).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1919025152 is an frugal number, since it uses more digits than its factorization.

1919025152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 13 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 35.

The square root of 1919025152 is about 43806.6793080690. The cubic root of 1919025152 is about 1242.6826140348.

The spelling of 1919025152 in words is "one billion, nine hundred nineteen million, twenty-five thousand, one hundred fifty-two".