1121025415 has 4 divisors (see below), whose sum is σ = 1345230504. Its totient is φ = 896820328.

The previous prime is 1121025401. The next prime is 1121025431. The reversal of 1121025415 is 5145201211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121025415 - 2⁷ = 1121025287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112102537 + ... + 112102546.

It is an arithmetic number, because the mean of its divisors is an integer number (336307626).

Almost surely, 2^1121025415 is an apocalyptic number.

1121025415 is a deficient number, since it is larger than the sum of its proper divisors (224205089).

1121025415 is an equidigital number, since it uses as much as digits as its factorization.

1121025415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224205088.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1121025415 is about 33481.7176232045. The cubic root of 1121025415 is about 1038.8156559196.

Adding to 1121025415 its reverse (5145201211), we get a palindrome (6266226626).

The spelling of 1121025415 in words is "one billion, one hundred twenty-one million, twenty-five thousand, four hundred fifteen".