162140719 has 4 divisors (see below), whose sum is σ = 174613096. Its totient is φ = 149668344.

The previous prime is 162140717. The next prime is 162140723. The reversal of 162140719 is 917041261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917041261 = 67 ⋅13687183.

It is a cyclic number.

It is not a de Polignac number, because 162140719 - 2¹ = 162140717 is a prime.

It is a super-2 number, since 2×162140719² = 52579225515673922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162140717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6236169 + ... + 6236194.

It is an arithmetic number, because the mean of its divisors is an integer number (43653274).

Almost surely, 2^162140719 is an apocalyptic number.

162140719 is a deficient number, since it is larger than the sum of its proper divisors (12472377).

162140719 is a wasteful number, since it uses less digits than its factorization.

162140719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472376.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 162140719 is about 12733.4488258288. The cubic root of 162140719 is about 545.2939737698.

The spelling of 162140719 in words is "one hundred sixty-two million, one hundred forty thousand, seven hundred nineteen".