1245455254 has 4 divisors (see below), whose sum is σ = 1868182884. Its totient is φ = 622727626.

The previous prime is 1245455227. The next prime is 1245455269. The reversal of 1245455254 is 4525545421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311363812 + ... + 311363815.

It is an arithmetic number, because the mean of its divisors is an integer number (467045721).

Almost surely, 2^1245455254 is an apocalyptic number.

1245455254 is a deficient number, since it is larger than the sum of its proper divisors (622727630).

1245455254 is an equidigital number, since it uses as much as digits as its factorization.

1245455254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622727629.

The product of its digits is 160000, while the sum is 37.

The square root of 1245455254 is about 35291.0081182162. The cubic root of 1245455254 is about 1075.9102451586.

The spelling of 1245455254 in words is "one billion, two hundred forty-five million, four hundred fifty-five thousand, two hundred fifty-four".