1245055423 has 4 divisors (see below), whose sum is σ = 1245263608. Its totient is φ = 1244847240.

The previous prime is 1245055417. The next prime is 1245055453. The reversal of 1245055423 is 3245505421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1245055423 - 2⁵ = 1245055391 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 (1245055403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94848 + ... + 107173.

It is an arithmetic number, because the mean of its divisors is an integer number (311315902).

Almost surely, 2^1245055423 is an apocalyptic number.

1245055423 is a deficient number, since it is larger than the sum of its proper divisors (208185).

1245055423 is an equidigital number, since it uses as much as digits as its factorization.

1245055423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208184.

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

The square root of 1245055423 is about 35285.3428919148. The cubic root of 1245055423 is about 1075.7950989607.

The spelling of 1245055423 in words is "one billion, two hundred forty-five million, fifty-five thousand, four hundred twenty-three".