120689349 has 32 divisors (see below), whose sum is σ = 192844800. Its totient is φ = 66274560.

The previous prime is 120689299. The next prime is 120689353. The reversal of 120689349 is 943986021.

120689349 = T₂₄ + T₂₅ + ... + T₈₉₇.

It is not a de Polignac number, because 120689349 - 2¹³ = 120681157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120689349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120689399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10237 + ... + 18605.

It is an arithmetic number, because the mean of its divisors is an integer number (6026400).

Almost surely, 2^120689349 is an apocalyptic number.

120689349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

120689349 is a deficient number, since it is larger than the sum of its proper divisors (72155451).

120689349 is a wasteful number, since it uses less digits than its factorization.

120689349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 120689349 is about 10985.8704252326. The cubic root of 120689349 is about 494.1851014011.

The spelling of 120689349 in words is "one hundred twenty million, six hundred eighty-nine thousand, three hundred forty-nine".