1220523254 has 16 divisors (see below), whose sum is σ = 1928836800. Its totient is φ = 577634184.

The previous prime is 1220523251. The next prime is 1220523257. The reversal of 1220523254 is 4523250221.

It is an interprime number because it is at equal distance from previous prime (1220523251) and next prime (1220523257).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220523251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31577 + ... + 58635.

It is an arithmetic number, because the mean of its divisors is an integer number (120552300).

Almost surely, 2^1220523254 is an apocalyptic number.

1220523254 is a deficient number, since it is larger than the sum of its proper divisors (708313546).

1220523254 is a wasteful number, since it uses less digits than its factorization.

1220523254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28267.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1220523254 is about 34935.9879493911. The cubic root of 1220523254 is about 1068.6824712802.

Adding to 1220523254 its reverse (4523250221), we get a palindrome (5743773475).

The spelling of 1220523254 in words is "one billion, two hundred twenty million, five hundred twenty-three thousand, two hundred fifty-four".