1220754475 has 12 divisors (see below), whose sum is σ = 1535058000. Its totient is φ = 962847200.

The previous prime is 1220754473. The next prime is 1220754497. The reversal of 1220754475 is 5744570221.

It is not a de Polignac number, because 1220754475 - 2¹ = 1220754473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220754473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342100 + ... + 345649.

It is an arithmetic number, because the mean of its divisors is an integer number (127921500).

Almost surely, 2^1220754475 is an apocalyptic number.

1220754475 is a deficient number, since it is larger than the sum of its proper divisors (314303525).

1220754475 is an equidigital number, since it uses as much as digits as its factorization.

1220754475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687830 (or 687825 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 1220754475 is about 34939.2970020863. The cubic root of 1220754475 is about 1068.7499522360.

The spelling of 1220754475 in words is "one billion, two hundred twenty million, seven hundred fifty-four thousand, four hundred seventy-five".