1023252345 has 24 divisors (see below), whose sum is σ = 1839329856. Its totient is φ = 545733936.

The previous prime is 1023252331. The next prime is 1023252413. The reversal of 1023252345 is 5432523201.

It is a happy number.

1023252345 is a `hidden beast` number, since 102 + 32 + 523 + 4 + 5 = 666.

It is not a de Polignac number, because 1023252345 - 2⁹ = 1023251833 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419877 + ... + 422306.

It is an arithmetic number, because the mean of its divisors is an integer number (76638744).

Almost surely, 2^1023252345 is an apocalyptic number.

1023252345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023252345 is a deficient number, since it is larger than the sum of its proper divisors (816077511).

1023252345 is an frugal number, since it uses more digits than its factorization.

1023252345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842203 (or 842191 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1023252345 is about 31988.3157574762. The cubic root of 1023252345 is about 1007.6914712639.

Adding to 1023252345 its reverse (5432523201), we get a palindrome (6455775546).

The spelling of 1023252345 in words is "one billion, twenty-three million, two hundred fifty-two thousand, three hundred forty-five".