120251345 has 4 divisors (see below), whose sum is σ = 144301620. Its totient is φ = 96201072.

The previous prime is 120251309. The next prime is 120251357. The reversal of 120251345 is 543152021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543152021 = 271 ⋅2004251.

It can be written as a sum of positive squares in 2 ways, for example, as 32341969 + 87909376 = 5687^2 + 9376^2 .

It is a cyclic number.

It is not a de Polignac number, because 120251345 - 2⁶ = 120251281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120251345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12025130 + ... + 12025139.

It is an arithmetic number, because the mean of its divisors is an integer number (36075405).

Almost surely, 2^120251345 is an apocalyptic number.

It is an amenable number.

120251345 is a deficient number, since it is larger than the sum of its proper divisors (24050275).

120251345 is an equidigital number, since it uses as much as digits as its factorization.

120251345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24050274.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 120251345 is about 10965.9174262804. The cubic root of 120251345 is about 493.5865469747.

The spelling of 120251345 in words is "one hundred twenty million, two hundred fifty-one thousand, three hundred forty-five".