1002672225 has 27 divisors (see below), whose sum is σ = 1796748499. Its totient is φ = 534505200.

The previous prime is 1002672157. The next prime is 1002672233. The reversal of 1002672225 is 5222762001.

The square root of 1002672225 is 31665.

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., 360962001 + 641710224 = 18999^2 + 25332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1002672225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 473920 + ... + 476030.

Almost surely, 2^1002672225 is an apocalyptic number.

1002672225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1002672225 is the 31665-th square number.

1002672225 is the 15833-rd centered octagonal number.

It is an amenable number.

1002672225 is a deficient number, since it is larger than the sum of its proper divisors (794076274).

1002672225 is an frugal number, since it uses more digits than its factorization.

1002672225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 2119 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The cubic root of 1002672225 is about 1000.8899494217.

The spelling of 1002672225 in words is "one billion, two million, six hundred seventy-two thousand, two hundred twenty-five".