1055619 has 8 divisors (see below), whose sum is σ = 1563920. Its totient is φ = 703728.

The previous prime is 1055611. The next prime is 1055671. The reversal of 1055619 is 9165501.

It is not a de Polignac number, because 1055619 - 2³ = 1055611 is a prime.

It is a super-2 number, since 2×1055619² = 2228662946322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 39097 = 1055619 / (1 + 0 + 5 + 5 + 6 + 1 + 9).

It is a Duffinian number.

1055619 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1055592 and 1055601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19522 + ... + 19575.

It is an arithmetic number, because the mean of its divisors is an integer number (195490).

2^1055619 is an apocalyptic number.

1055619 is a deficient number, since it is larger than the sum of its proper divisors (508301).

1055619 is an equidigital number, since it uses as much as digits as its factorization.

1055619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39106 (or 39100 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 1055619 is about 1027.4332095080. The cubic root of 1055619 is about 101.8206189748.

It can be divided in two parts, 105561 and 9, that added together give a triangular number (105570 = T₄₅₉).

The spelling of 1055619 in words is "one million, fifty-five thousand, six hundred nineteen".