1469725569 has 27 divisors (see below), whose sum is σ = 2301142467. Its totient is φ = 903526416.

The previous prime is 1469725567. The next prime is 1469725583. The reversal of 1469725569 is 9655279641.

The square root of 1469725569 is 38337.

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

1469725569 is a `hidden beast` number, since 1 + 4 + 6 + 9 + 72 + 5 + 569 = 666.

It can be written as a sum of positive squares in only one way, i.e., 217415025 + 1252310544 = 14745^2 + 35388^2 .

It is not a de Polignac number, because 1469725569 - 2¹ = 1469725567 is a prime.

It is a super-2 number, since 2×1469725569² = 4320186496344747522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1469725567) 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, 1494652 + ... + 1495634.

Almost surely, 2^1469725569 is an apocalyptic number.

1469725569 is the 38337-th square number.

1469725569 is the 19169-th centered octagonal number.

It is an amenable number.

1469725569 is a deficient number, since it is larger than the sum of its proper divisors (831416898).

1469725569 is an frugal number, since it uses more digits than its factorization.

1469725569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 999 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The cubic root of 1469725569 is about 1136.9606041260.

The spelling of 1469725569 in words is "one billion, four hundred sixty-nine million, seven hundred twenty-five thousand, five hundred sixty-nine".