120747551 has 2 divisors, whose sum is σ = 120747552. Its totient is φ = 120747550.

The previous prime is 120747509. The next prime is 120747577. The reversal of 120747551 is 155747021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120747551 - 2²⁶ = 53638687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120747581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60373775 + 60373776.

It is an arithmetic number, because the mean of its divisors is an integer number (60373776).

Almost surely, 2^120747551 is an apocalyptic number.

120747551 is a deficient number, since it is larger than the sum of its proper divisors (1).

120747551 is an equidigital number, since it uses as much as digits as its factorization.

120747551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 120747551 is about 10988.5190539945. The cubic root of 120747551 is about 494.2645282912.

The spelling of 120747551 in words is "one hundred twenty million, seven hundred forty-seven thousand, five hundred fifty-one".