120978497 has 8 divisors (see below), whose sum is σ = 124303200. Its totient is φ = 117696384.

The previous prime is 120978463. The next prime is 120978499. The reversal of 120978497 is 794879021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120978497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120978499) 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, 4847 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (15537900).

Almost surely, 2^120978497 is an apocalyptic number.

It is an amenable number.

120978497 is a deficient number, since it is larger than the sum of its proper divisors (3324703).

120978497 is an equidigital number, since it uses as much as digits as its factorization.

120978497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21295.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 120978497 is about 10999.0225474812. The cubic root of 120978497 is about 494.5794434932.

The spelling of 120978497 in words is "one hundred twenty million, nine hundred seventy-eight thousand, four hundred ninety-seven".