1052021919 has 16 divisors (see below), whose sum is σ = 1527573600. Its totient is φ = 640121856.

The previous prime is 1052021891. The next prime is 1052021923. The reversal of 1052021919 is 9191202501.

It is not a de Polignac number, because 1052021919 - 2⁷ = 1052021791 is a prime.

It is a super-2 number, since 2×1052021919² = 2213500236112885122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052021119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148074 + ... + 155015.

It is an arithmetic number, because the mean of its divisors is an integer number (95473350).

Almost surely, 2^1052021919 is an apocalyptic number.

1052021919 is a deficient number, since it is larger than the sum of its proper divisors (475551681).

1052021919 is a wasteful number, since it uses less digits than its factorization.

1052021919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303194.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 1052021919 is about 32434.8873745540. The cubic root of 1052021919 is about 1017.0483420236.

The spelling of 1052021919 in words is "one billion, fifty-two million, twenty-one thousand, nine hundred nineteen".