120187089 has 12 divisors (see below), whose sum is σ = 189385872. Its totient is φ = 72840600.

The previous prime is 120187087. The next prime is 120187099. The reversal of 120187089 is 980781021.

It is not a de Polignac number, because 120187089 - 2¹ = 120187087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120187087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606907 + ... + 607104.

It is an arithmetic number, because the mean of its divisors is an integer number (15782156).

Almost surely, 2^120187089 is an apocalyptic number.

It is an amenable number.

120187089 is a deficient number, since it is larger than the sum of its proper divisors (69198783).

120187089 is a wasteful number, since it uses less digits than its factorization.

120187089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214028 (or 1214025 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 120187089 is about 10962.9872297654. The cubic root of 120187089 is about 493.4986157394.

The spelling of 120187089 in words is "one hundred twenty million, one hundred eighty-seven thousand, eighty-nine".