1025415 has 12 divisors (see below), whose sum is σ = 1777464. Its totient is φ = 546864.

The previous prime is 1025413. The next prime is 1025417. The reversal of 1025415 is 5145201.

It is an interprime number because it is at equal distance from previous prime (1025413) and next prime (1025417).

It is not a de Polignac number, because 1025415 - 2¹ = 1025413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11349 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (148122).

2^1025415 is an apocalyptic number.

1025415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025415 is a deficient number, since it is larger than the sum of its proper divisors (752049).

1025415 is a wasteful number, since it uses less digits than its factorization.

1025415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22798 (or 22795 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1025415 is about 1012.6277697160. The cubic root of 1025415 is about 100.8400894015.

It can be divided in two parts, 10 and 25415, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 1025415 in words is "one million, twenty-five thousand, four hundred fifteen".