881199225 has 27 divisors (see below), whose sum is σ = 1579123663. Its totient is φ = 469735440.

The previous prime is 881199197. The next prime is 881199227. The reversal of 881199225 is 522991188.

The square root of 881199225 is 29685.

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., 317231721 + 563967504 = 17811^2 + 23748^2 .

It is not a de Polignac number, because 881199225 - 2¹⁹ = 880674937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881199227) 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, 444286 + ... + 446264.

Almost surely, 2^881199225 is an apocalyptic number.

881199225 is the 29685-th square number.

881199225 is the 14843-rd centered octagonal number.

It is an amenable number.

881199225 is a deficient number, since it is larger than the sum of its proper divisors (697924438).

881199225 is an equidigital number, since it uses as much as digits as its factorization.

881199225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 1987 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The cubic root of 881199225 is about 958.7190761342.

It can be divided in two parts, 88119 and 9225, that added together give a square (97344 = 312²).

The spelling of 881199225 in words is "eight hundred eighty-one million, one hundred ninety-nine thousand, two hundred twenty-five".