1485499261 has 4 divisors (see below), whose sum is σ = 1533418624. Its totient is φ = 1437579900.

The previous prime is 1485499231. The next prime is 1485499289. The reversal of 1485499261 is 1629945841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1485499261 - 2²⁵ = 1451944829 is a prime.

It is a super-2 number, since 2×1485499261² = 4413416108863092242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485499231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23959635 + ... + 23959696.

It is an arithmetic number, because the mean of its divisors is an integer number (383354656).

Almost surely, 2^1485499261 is an apocalyptic number.

It is an amenable number.

1485499261 is a deficient number, since it is larger than the sum of its proper divisors (47919363).

1485499261 is an equidigital number, since it uses as much as digits as its factorization.

1485499261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47919362.

The product of its digits is 622080, while the sum is 49.

The square root of 1485499261 is about 38542.1750943042. The cubic root of 1485499261 is about 1141.0135801886.

The spelling of 1485499261 in words is "one billion, four hundred eighty-five million, four hundred ninety-nine thousand, two hundred sixty-one".