162131014421 has 8 divisors (see below), whose sum is σ = 162710110680. Its totient is φ = 161552498688.

The previous prime is 162131014417. The next prime is 162131014439. The reversal of 162131014421 is 124410131261.

It can be written as a sum of positive squares in 4 ways, for example, as 55453656196 + 106677358225 = 235486^2 + 326615^2 .

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 162131014421 - 2² = 162131014417 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 (162131014411) 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, 418325 + ... + 706581.

It is an arithmetic number, because the mean of its divisors is an integer number (20338763835).

Almost surely, 2^162131014421 is an apocalyptic number.

It is an amenable number.

162131014421 is a deficient number, since it is larger than the sum of its proper divisors (579096259).

162131014421 is a wasteful number, since it uses less digits than its factorization.

162131014421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290263.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 162131014421 its reverse (124410131261), we get a palindrome (286541145682).

The spelling of 162131014421 in words is "one hundred sixty-two billion, one hundred thirty-one million, fourteen thousand, four hundred twenty-one".