1220150534 has 16 divisors (see below), whose sum is σ = 1859609328. Its totient is φ = 600301152.

The previous prime is 1220150509. The next prime is 1220150539. The reversal of 1220150534 is 4350510221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220150539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129032 + ... + 138164.

It is an arithmetic number, because the mean of its divisors is an integer number (116225583).

Almost surely, 2^1220150534 is an apocalyptic number.

1220150534 is a deficient number, since it is larger than the sum of its proper divisors (639458794).

1220150534 is an equidigital number, since it uses as much as digits as its factorization.

1220150534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10199.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1220150534 is about 34930.6532146194. The cubic root of 1220150534 is about 1068.5736764437.

Adding to 1220150534 its reverse (4350510221), we get a palindrome (5570660755).

The spelling of 1220150534 in words is "one billion, two hundred twenty million, one hundred fifty thousand, five hundred thirty-four".