1120621847 has 4 divisors (see below), whose sum is σ = 1169344560. Its totient is φ = 1071899136.

The previous prime is 1120621841. The next prime is 1120621867. The reversal of 1120621847 is 7481260211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7481260211 = 3083 ⋅2426617.

It is a cyclic number.

It is not a de Polignac number, because 1120621847 - 2⁶ = 1120621783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120621841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24361322 + ... + 24361367.

It is an arithmetic number, because the mean of its divisors is an integer number (292336140).

Almost surely, 2^1120621847 is an apocalyptic number.

1120621847 is a deficient number, since it is larger than the sum of its proper divisors (48722713).

1120621847 is an equidigital number, since it uses as much as digits as its factorization.

1120621847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48722712.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1120621847 is about 33475.6903886985. The cubic root of 1120621847 is about 1038.6909834341.

The spelling of 1120621847 in words is "one billion, one hundred twenty million, six hundred twenty-one thousand, eight hundred forty-seven".