505156144231 has 8 divisors (see below), whose sum is σ = 519575374080. Its totient is φ = 490777249248.

The previous prime is 505156144211. The next prime is 505156144249. The reversal of 505156144231 is 132441651505.

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 505156144231 - 2⁹ = 505156143719 is a prime.

It is a super-2 number, since 2×505156144231² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505156144211) 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, 10058311 + ... + 10108408.

It is an arithmetic number, because the mean of its divisors is an integer number (64946921760).

Almost surely, 2^505156144231 is an apocalyptic number.

505156144231 is a deficient number, since it is larger than the sum of its proper divisors (14419229849).

505156144231 is a wasteful number, since it uses less digits than its factorization.

505156144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20167433.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 505156144231 its reverse (132441651505), we get a palindrome (637597795736).

The spelling of 505156144231 in words is "five hundred five billion, one hundred fifty-six million, one hundred forty-four thousand, two hundred thirty-one".