162190749 has 32 divisors (see below), whose sum is σ = 255062016. Its totient is φ = 89755200.

The previous prime is 162190741. The next prime is 162190751. The reversal of 162190749 is 947091261.

It is not a de Polignac number, because 162190749 - 2³ = 162190741 is a prime.

It is a super-2 number, since 2×162190749² = 52611678122362002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162190741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98874 + ... + 100500.

It is an arithmetic number, because the mean of its divisors is an integer number (7970688).

Almost surely, 2^162190749 is an apocalyptic number.

It is an amenable number.

162190749 is a deficient number, since it is larger than the sum of its proper divisors (92871267).

162190749 is a wasteful number, since it uses less digits than its factorization.

162190749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 162190749 is about 12735.4131852877. The cubic root of 162190749 is about 545.3500531479.

The spelling of 162190749 in words is "one hundred sixty-two million, one hundred ninety thousand, seven hundred forty-nine".