503135450454 has 64 divisors (see below), whose sum is σ = 1238671171584. Its totient is φ = 132675359616.

The previous prime is 503135450453. The next prime is 503135450491. The reversal of 503135450454 is 454054531305.

It is a happy number.

It is a super-2 number, since 2×503135450454² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503135450453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3813372 + ... + 3943104.

It is an arithmetic number, because the mean of its divisors is an integer number (19354237056).

Almost surely, 2^503135450454 is an apocalyptic number.

503135450454 is an abundant number, since it is smaller than the sum of its proper divisors (735535721130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503135450454 is a wasteful number, since it uses less digits than its factorization.

503135450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136861.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 503135450454 its reverse (454054531305), we get a palindrome (957189981759).

The spelling of 503135450454 in words is "five hundred three billion, one hundred thirty-five million, four hundred fifty thousand, four hundred fifty-four".