162689741 has 4 divisors (see below), whose sum is σ = 169763232. Its totient is φ = 155616252.

The previous prime is 162689713. The next prime is 162689743. The reversal of 162689741 is 147986261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-162689741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162689692 and 162689701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162689743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536711 + ... + 3536756.

It is an arithmetic number, because the mean of its divisors is an integer number (42440808).

Almost surely, 2^162689741 is an apocalyptic number.

It is an amenable number.

162689741 is a deficient number, since it is larger than the sum of its proper divisors (7073491).

162689741 is an equidigital number, since it uses as much as digits as its factorization.

162689741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7073490.

The product of its digits is 145152, while the sum is 44.

The square root of 162689741 is about 12754.9888671061. The cubic root of 162689741 is about 545.9087506900.

The spelling of 162689741 in words is "one hundred sixty-two million, six hundred eighty-nine thousand, seven hundred forty-one".