153431345344540 has 72 divisors (see below), whose sum is σ = 331213329735120. Its totient is φ = 59702301808128.

The previous prime is 153431345344517. The next prime is 153431345344559. The reversal of 153431345344540 is 45443543134351.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142084527 + ... + 143160313.

It is an arithmetic number, because the mean of its divisors is an integer number (4600185135210).

Almost surely, 2^{153431345344540} is an apocalyptic number.

153431345344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153431345344540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165606664867560).

153431345344540 is an abundant number, since it is smaller than the sum of its proper divisors (177781984390580).

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

153431345344540 is a wasteful number, since it uses less digits than its factorization.

153431345344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081079 (or 1081040 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 49.

Adding to 153431345344540 its reverse (45443543134351), we get a palindrome (198874888478891).

The spelling of 153431345344540 in words is "one hundred fifty-three trillion, four hundred thirty-one billion, three hundred forty-five million, three hundred forty-four thousand, five hundred forty".