120681445 has 16 divisors (see below), whose sum is σ = 152712000. Its totient is φ = 91300608.

The previous prime is 120681443. The next prime is 120681467. The reversal of 120681445 is 544186021.

It is a cyclic number.

It is not a de Polignac number, because 120681445 - 2¹ = 120681443 is a prime.

It is a super-2 number, since 2×120681445² = 29128022334576050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120681443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95226 + ... + 96484.

It is an arithmetic number, because the mean of its divisors is an integer number (9544500).

Almost surely, 2^120681445 is an apocalyptic number.

It is an amenable number.

120681445 is a deficient number, since it is larger than the sum of its proper divisors (32030555).

120681445 is a wasteful number, since it uses less digits than its factorization.

120681445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 120681445 is about 10985.5106845335. The cubic root of 120681445 is about 494.1743130304.

The spelling of 120681445 in words is "one hundred twenty million, six hundred eighty-one thousand, four hundred forty-five".