162755421 has 16 divisors (see below), whose sum is σ = 223153920. Its totient is φ = 105468480.

The previous prime is 162755419. The next prime is 162755431. The reversal of 162755421 is 124557261.

It is not a de Polignac number, because 162755421 - 2¹ = 162755419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162755401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12636 + ... + 22026.

It is an arithmetic number, because the mean of its divisors is an integer number (13947120).

Almost surely, 2^162755421 is an apocalyptic number.

It is an amenable number.

162755421 is a deficient number, since it is larger than the sum of its proper divisors (60398499).

162755421 is a wasteful number, since it uses less digits than its factorization.

162755421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556.

The product of its digits is 16800, while the sum is 33.

The square root of 162755421 is about 12757.5632861452. The cubic root of 162755421 is about 545.9822043335.

The spelling of 162755421 in words is "one hundred sixty-two million, seven hundred fifty-five thousand, four hundred twenty-one".