1154980225 has 27 divisors (see below), whose sum is σ = 1667717571. Its totient is φ = 791170800.

The previous prime is 1154980223. The next prime is 1154980273. The reversal of 1154980225 is 5220894511.

The square root of 1154980225 is 33985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 415792881 + 739187344 = 20391^2 + 27188^2 .

It is not a de Polignac number, because 1154980225 - 2¹ = 1154980223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154980223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1188990 + ... + 1189960.

Almost surely, 2^1154980225 is an apocalyptic number.

1154980225 is the 33985-th square number.

1154980225 is the 16993-rd centered octagonal number.

It is an amenable number.

1154980225 is a deficient number, since it is larger than the sum of its proper divisors (512737346).

1154980225 is an frugal number, since it uses more digits than its factorization.

1154980225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The cubic root of 1154980225 is about 1049.1997606367.

The spelling of 1154980225 in words is "one billion, one hundred fifty-four million, nine hundred eighty thousand, two hundred twenty-five".