240529081 has 9 divisors (see below), whose sum is σ = 260673069. Its totient is φ = 221840736.

The previous prime is 240529063. The next prime is 240529099. The reversal of 240529081 is 180925042.

The square root of 240529081 is 15509.

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

It is an interprime number because it is at equal distance from previous prime (240529063) and next prime (240529099).

It can be written as a sum of positive squares in 4 ways, for example, as 32592681 + 207936400 = 5709^2 + 14420^2 .

It is not a de Polignac number, because 240529081 - 2¹⁷ = 240398009 is a prime.

It is a super-2 number, since 2×240529081² = 115708477613409122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240529381) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 201021 + ... + 202213.

Almost surely, 2^240529081 is an apocalyptic number.

240529081 is the 15509-th square number.

240529081 is the 7755-th centered octagonal number.

It is an amenable number.

240529081 is a deficient number, since it is larger than the sum of its proper divisors (20143988).

240529081 is an frugal number, since it uses more digits than its factorization.

240529081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The cubic root of 240529081 is about 621.9028264983.

It can be divided in two parts, 24052 and 9081, that added together give a palindrome (33133).

The spelling of 240529081 in words is "two hundred forty million, five hundred twenty-nine thousand, eighty-one".