1025115 has 32 divisors (see below), whose sum is σ = 2021376. Its totient is φ = 432000.

The previous prime is 1025113. The next prime is 1025119. The reversal of 1025115 is 5115201.

It is not a de Polignac number, because 1025115 - 2¹ = 1025113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1025094 and 1025103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (63168).

2^1025115 is an apocalyptic number.

1025115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025115 is a deficient number, since it is larger than the sum of its proper divisors (996261).

1025115 is a wasteful number, since it uses less digits than its factorization.

1025115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1025115 is about 1012.4796294247. The cubic root of 1025115 is about 100.8302543664.

The spelling of 1025115 in words is "one million, twenty-five thousand, one hundred fifteen".