1245505423 has 8 divisors (see below), whose sum is σ = 1316286720. Its totient is φ = 1175247000.

The previous prime is 1245505403. The next prime is 1245505441. The reversal of 1245505423 is 3245055421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245505423 - 2²⁵ = 1211950991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245505403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125815 + ... + 135352.

It is an arithmetic number, because the mean of its divisors is an integer number (164535840).

Almost surely, 2^1245505423 is an apocalyptic number.

1245505423 is a deficient number, since it is larger than the sum of its proper divisors (70781297).

1245505423 is a wasteful number, since it uses less digits than its factorization.

1245505423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261437.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1245505423 is about 35291.7189011813. The cubic root of 1245505423 is about 1075.9246914467.

The spelling of 1245505423 in words is "one billion, two hundred forty-five million, five hundred five thousand, four hundred twenty-three".