1238853503 has 4 divisors (see below), whose sum is σ = 1259851080. Its totient is φ = 1217855928.

The previous prime is 1238853481. The next prime is 1238853547. The reversal of 1238853503 is 3053588321.

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 1238853503 - 2¹⁶ = 1238787967 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 (1238853703) 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, 10498700 + ... + 10498817.

It is an arithmetic number, because the mean of its divisors is an integer number (314962770).

Almost surely, 2^1238853503 is an apocalyptic number.

1238853503 is a deficient number, since it is larger than the sum of its proper divisors (20997577).

1238853503 is an equidigital number, since it uses as much as digits as its factorization.

1238853503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20997576.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1238853503 is about 35197.3507951948. The cubic root of 1238853503 is about 1074.0058602258.

The spelling of 1238853503 in words is "one billion, two hundred thirty-eight million, eight hundred fifty-three thousand, five hundred three".