1881150481 has 4 divisors (see below), whose sum is σ = 2149886272. Its totient is φ = 1612414692.

The previous prime is 1881150457. The next prime is 1881150497. The reversal of 1881150481 is 1840511881.

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 not a de Polignac number, because 1881150481 - 2⁷ = 1881150353 is a prime.

It is a super-2 number, since 2×1881150481² = 7077454264333062722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1881150481.

It is not an unprimeable number, because it can be changed into a prime (1881150421) 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, 134367885 + ... + 134367898.

It is an arithmetic number, because the mean of its divisors is an integer number (537471568).

Almost surely, 2^1881150481 is an apocalyptic number.

It is an amenable number.

1881150481 is a deficient number, since it is larger than the sum of its proper divisors (268735791).

1881150481 is an equidigital number, since it uses as much as digits as its factorization.

1881150481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268735790.

The product of its (nonzero) digits is 10240, while the sum is 37.

The square root of 1881150481 is about 43372.2316811114. The cubic root of 1881150481 is about 1234.4528669661.

The spelling of 1881150481 in words is "one billion, eight hundred eighty-one million, one hundred fifty thousand, four hundred eighty-one".