1055646419 has 4 divisors (see below), whose sum is σ = 1072952160. Its totient is φ = 1038340680.

The previous prime is 1055646413. The next prime is 1055646437. The reversal of 1055646419 is 9146465501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9146465501 = 59 ⋅155024839.

It is a cyclic number.

It is not a de Polignac number, because 1055646419 - 2¹² = 1055642323 is a prime.

It is a super-3 number, since 3×1055646419³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055646413) 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, 8652779 + ... + 8652900.

It is an arithmetic number, because the mean of its divisors is an integer number (268238040).

Almost surely, 2^1055646419 is an apocalyptic number.

1055646419 is a deficient number, since it is larger than the sum of its proper divisors (17305741).

1055646419 is an equidigital number, since it uses as much as digits as its factorization.

1055646419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17305740.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1055646419 is about 32490.7128115097. The cubic root of 1055646419 is about 1018.2150054139.

The spelling of 1055646419 in words is "one billion, fifty-five million, six hundred forty-six thousand, four hundred nineteen".