1485048181 has 4 divisors (see below), whose sum is σ = 1513068012. Its totient is φ = 1457028352.

The previous prime is 1485048163. The next prime is 1485048203. The reversal of 1485048181 is 1818405841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1818405841 = 7 ⋅259772263.

It can be written as a sum of positive squares in 2 ways, for example, as 1174090225 + 310957956 = 34265^2 + 17634^2 .

It is a cyclic number.

It is not a de Polignac number, because 1485048181 - 2⁷ = 1485048053 is a prime.

It is a super-2 number, since 2×1485048181² = 4410736199782817522, 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 (1485048281) 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, 14009836 + ... + 14009941.

It is an arithmetic number, because the mean of its divisors is an integer number (378267003).

Almost surely, 2^1485048181 is an apocalyptic number.

It is an amenable number.

1485048181 is a deficient number, since it is larger than the sum of its proper divisors (28019831).

1485048181 is an equidigital number, since it uses as much as digits as its factorization.

1485048181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28019830.

The product of its (nonzero) digits is 40960, while the sum is 40.

The square root of 1485048181 is about 38536.3228785519. The cubic root of 1485048181 is about 1140.8980768191.

The spelling of 1485048181 in words is "one billion, four hundred eighty-five million, forty-eight thousand, one hundred eighty-one".