1056915 has 16 divisors (see below), whose sum is σ = 1879200. Its totient is φ = 563616.

The previous prime is 1056911. The next prime is 1056917. The reversal of 1056915 is 5196501.

Added to its reverse (5196501) it gives a triangular number (6253416 = T₃₅₃₆).

It is not a de Polignac number, because 1056915 - 2² = 1056911 is a prime.

It is a super-2 number, since 2×1056915² = 2234138634450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1056911) 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, 3780 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (117450).

2^1056915 is an apocalyptic number.

1056915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1056915 is a deficient number, since it is larger than the sum of its proper divisors (822285).

1056915 is an equidigital number, since it uses as much as digits as its factorization.

1056915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843 (or 7837 counting only the distinct ones).

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

The square root of 1056915 is about 1028.0637139789. The cubic root of 1056915 is about 101.8622708574.

Adding to 1056915 its reverse (5196501), we get a triangular number (6253416 = T₃₅₃₆).

The spelling of 1056915 in words is "one million, fifty-six thousand, nine hundred fifteen".