1220090523 has 16 divisors (see below), whose sum is σ = 1694196000. Its totient is φ = 780066560.

The previous prime is 1220090447. The next prime is 1220090533. The reversal of 1220090523 is 3250900221.

It is a cyclic number.

It is not a de Polignac number, because 1220090523 - 2¹⁷ = 1219959451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220090493 and 1220090502.

It is not an unprimeable number, because it can be changed into a prime (1220090533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34098 + ... + 60023.

It is an arithmetic number, because the mean of its divisors is an integer number (105887250).

Almost surely, 2^1220090523 is an apocalyptic number.

1220090523 is a deficient number, since it is larger than the sum of its proper divisors (474105477).

1220090523 is a wasteful number, since it uses less digits than its factorization.

1220090523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94302.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1220090523 is about 34929.7942020848. The cubic root of 1220090523 is about 1068.5561575053.

Adding to 1220090523 its reverse (3250900221), we get a palindrome (4470990744).

The spelling of 1220090523 in words is "one billion, two hundred twenty million, ninety thousand, five hundred twenty-three".