1115450421 has 8 divisors (see below), whose sum is σ = 1488067104. Its totient is φ = 743233680.

The previous prime is 1115450381. The next prime is 1115450429. The reversal of 1115450421 is 1240545111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115450421 - 2¹⁷ = 1115319349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1115450391 and 1115450400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115450429) 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, 93415 + ... + 104676.

It is an arithmetic number, because the mean of its divisors is an integer number (186008388).

Almost surely, 2^1115450421 is an apocalyptic number.

It is an amenable number.

1115450421 is a deficient number, since it is larger than the sum of its proper divisors (372616683).

1115450421 is a wasteful number, since it uses less digits than its factorization.

1115450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199971.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1115450421 is about 33398.3595555231. The cubic root of 1115450421 is about 1037.0907416844.

Adding to 1115450421 its reverse (1240545111), we get a palindrome (2355995532).

The spelling of 1115450421 in words is "one billion, one hundred fifteen million, four hundred fifty thousand, four hundred twenty-one".