1019955 has 16 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 537600.

The previous prime is 1019927. The next prime is 1019971. The reversal of 1019955 is 5599101.

1019955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1019955 - 2⁷ = 1019827 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105 + ... + 1805.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2^1019955 is an apocalyptic number.

1019955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1019955 is a deficient number, since it is larger than the sum of its proper divisors (631149).

1019955 is an equidigital number, since it uses as much as digits as its factorization.

1019955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 1019955 is about 1009.9282152708. The cubic root of 1019955 is about 100.6607906067.

The spelling of 1019955 in words is "one million, nineteen thousand, nine hundred fifty-five".