120878719 has 16 divisors (see below), whose sum is σ = 134586144. Its totient is φ = 107856000.

The previous prime is 120878717. The next prime is 120878749. The reversal of 120878719 is 917878021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120878719 - 2¹ = 120878717 is a prime.

It is a super-2 number, since 2×120878719² = 29223329414161922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120878713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55389 + ... + 57529.

It is an arithmetic number, because the mean of its divisors is an integer number (8411634).

Almost surely, 2^120878719 is an apocalyptic number.

120878719 is a deficient number, since it is larger than the sum of its proper divisors (13707425).

120878719 is a wasteful number, since it uses less digits than its factorization.

120878719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 56448, while the sum is 43.

The square root of 120878719 is about 10994.4858451862. The cubic root of 120878719 is about 494.4434366216.

The spelling of 120878719 in words is "one hundred twenty million, eight hundred seventy-eight thousand, seven hundred nineteen".