1247500023 has 32 divisors (see below), whose sum is σ = 2075880960. Its totient is φ = 647391360.

The previous prime is 1247500021. The next prime is 1247500027. The reversal of 1247500023 is 3200057421.

It is not a de Polignac number, because 1247500023 - 2¹ = 1247500021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1247499966 and 1247500002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247500021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292873 + ... + 297101.

It is an arithmetic number, because the mean of its divisors is an integer number (64871280).

Almost surely, 2^1247500023 is an apocalyptic number.

1247500023 is a deficient number, since it is larger than the sum of its proper divisors (828380937).

1247500023 is a wasteful number, since it uses less digits than its factorization.

1247500023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1247500023 is about 35319.9663504936. The cubic root of 1247500023 is about 1076.4987274391.

Adding to 1247500023 its reverse (3200057421), we get a palindrome (4447557444).

The spelling of 1247500023 in words is "one billion, two hundred forty-seven million, five hundred thousand, twenty-three".