1023465 has 24 divisors (see below), whose sum is σ = 1715904. Its totient is φ = 520800.

The previous prime is 1023461. The next prime is 1023467. The reversal of 1023465 is 5643201.

It is a happy number.

It is not a de Polignac number, because 1023465 - 2² = 1023461 is a prime.

1023465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1023461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14380 + ... + 14450.

It is an arithmetic number, because the mean of its divisors is an integer number (71496).

2^1023465 is an apocalyptic number.

1023465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023465 is a deficient number, since it is larger than the sum of its proper divisors (692439).

1023465 is an equidigital number, since it uses as much as digits as its factorization.

1023465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1023465 is about 1011.6644700690. The cubic root of 1023465 is about 100.7761273461.

Adding to 1023465 its reverse (5643201), we get a palindrome (6666666).

The spelling of 1023465 in words is "one million, twenty-three thousand, four hundred sixty-five".