120999493 has 2 divisors, whose sum is σ = 120999494. Its totient is φ = 120999492.

The previous prime is 120999491. The next prime is 120999497. The reversal of 120999493 is 394999021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117007489 + 3992004 = 10817^2 + 1998^2 .

It is a cyclic number.

It is not a de Polignac number, because 120999493 - 2¹ = 120999491 is a prime.

Together with 120999491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120999491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60499746 + 60499747.

It is an arithmetic number, because the mean of its divisors is an integer number (60499747).

Almost surely, 2^120999493 is an apocalyptic number.

It is an amenable number.

120999493 is a deficient number, since it is larger than the sum of its proper divisors (1).

120999493 is an equidigital number, since it uses as much as digits as its factorization.

120999493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 120999493 is about 10999.9769545213. The cubic root of 120999493 is about 494.6080535067.

The spelling of 120999493 in words is "one hundred twenty million, nine hundred ninety-nine thousand, four hundred ninety-three".