120451215 has 8 divisors (see below), whose sum is σ = 192721968. Its totient is φ = 64240640.

The previous prime is 120451189. The next prime is 120451217. The reversal of 120451215 is 512154021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120451215 - 2⁹ = 120450703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120451191 and 120451200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120451217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015026 + ... + 4015055.

It is an arithmetic number, because the mean of its divisors is an integer number (24090246).

Almost surely, 2^120451215 is an apocalyptic number.

120451215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120451215 is a deficient number, since it is larger than the sum of its proper divisors (72270753).

120451215 is an equidigital number, since it uses as much as digits as its factorization.

120451215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030089.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 120451215 is about 10975.0268792382. The cubic root of 120451215 is about 493.8598593338.

The spelling of 120451215 in words is "one hundred twenty million, four hundred fifty-one thousand, two hundred fifteen".