162157758 has 24 divisors (see below), whose sum is σ = 377265672. Its totient is φ = 46330704.

The previous prime is 162157757. The next prime is 162157777. The reversal of 162157758 is 857751261.

162157758 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162157753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275485 + ... + 276072.

It is an arithmetic number, because the mean of its divisors is an integer number (15719403).

Almost surely, 2^162157758 is an apocalyptic number.

162157758 is an abundant number, since it is smaller than the sum of its proper divisors (215107914).

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

162157758 is a wasteful number, since it uses less digits than its factorization.

162157758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551576 (or 551569 counting only the distinct ones).

The product of its digits is 117600, while the sum is 42.

The square root of 162157758 is about 12734.1178728642. The cubic root of 162157758 is about 545.3130743359.

The spelling of 162157758 in words is "one hundred sixty-two million, one hundred fifty-seven thousand, seven hundred fifty-eight".