120145719 has 4 divisors (see below), whose sum is σ = 160194296. Its totient is φ = 80097144.

The previous prime is 120145709. The next prime is 120145723. The reversal of 120145719 is 917541021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917541021 = 3 ⋅305847007.

It is not a de Polignac number, because 120145719 - 2⁵ = 120145687 is a prime.

It is a super-2 number, since 2×120145719² = 28869987588053922, 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 (120145709) 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, 20024284 + ... + 20024289.

It is an arithmetic number, because the mean of its divisors is an integer number (40048574).

Almost surely, 2^120145719 is an apocalyptic number.

120145719 is a deficient number, since it is larger than the sum of its proper divisors (40048577).

120145719 is an equidigital number, since it uses as much as digits as its factorization.

120145719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40048576.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 120145719 is about 10961.1002641158. The cubic root of 120145719 is about 493.4419863048.

The spelling of 120145719 in words is "one hundred twenty million, one hundred forty-five thousand, seven hundred nineteen".