120749751 has 8 divisors (see below), whose sum is σ = 178888560. Its totient is φ = 80499816.

The previous prime is 120749729. The next prime is 120749753. The reversal of 120749751 is 157947021.

It is a happy number.

It is not a de Polignac number, because 120749751 - 2¹¹ = 120747703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120749753) 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, 2236080 + ... + 2236133.

It is an arithmetic number, because the mean of its divisors is an integer number (22361070).

Almost surely, 2^120749751 is an apocalyptic number.

120749751 is a deficient number, since it is larger than the sum of its proper divisors (58138809).

120749751 is an equidigital number, since it uses as much as digits as its factorization.

120749751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472222 (or 4472216 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 120749751 is about 10988.6191580198. The cubic root of 120749751 is about 494.2675300784.

The spelling of 120749751 in words is "one hundred twenty million, seven hundred forty-nine thousand, seven hundred fifty-one".