1153221430 has 16 divisors (see below), whose sum is σ = 2077622784. Its totient is φ = 460883200.

The previous prime is 1153221389. The next prime is 1153221431. The reversal of 1153221430 is 341223511.

It is a happy number.

It is a super-2 number, since 2×1153221430² = 2659839333222489800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153221431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38587 + ... + 61606.

It is an arithmetic number, because the mean of its divisors is an integer number (129851424).

Almost surely, 2^1153221430 is an apocalyptic number.

1153221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153221430 is a deficient number, since it is larger than the sum of its proper divisors (924401354).

1153221430 is a wasteful number, since it uses less digits than its factorization.

1153221430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101351.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1153221430 is about 33959.1140932740. The cubic root of 1153221430 is about 1048.6669189685. Note that the first 3 decimals are identical.

Adding to 1153221430 its reverse (341223511), we get a palindrome (1494444941).

The spelling of 1153221430 in words is "one billion, one hundred fifty-three million, two hundred twenty-one thousand, four hundred thirty".