1481867501 has 4 divisors (see below), whose sum is σ = 1521918012. Its totient is φ = 1441816992.

The previous prime is 1481867467. The next prime is 1481867507. The reversal of 1481867501 is 1057681841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1435273225 + 46594276 = 37885^2 + 6826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481867501 - 2¹⁴ = 1481851117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481867507) 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, 20025200 + ... + 20025273.

It is an arithmetic number, because the mean of its divisors is an integer number (380479503).

Almost surely, 2^1481867501 is an apocalyptic number.

It is an amenable number.

1481867501 is a deficient number, since it is larger than the sum of its proper divisors (40050511).

1481867501 is an equidigital number, since it uses as much as digits as its factorization.

1481867501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40050510.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 1481867501 is about 38495.0321600073. The cubic root of 1481867501 is about 1140.0829684664.

The spelling of 1481867501 in words is "one billion, four hundred eighty-one million, eight hundred sixty-seven thousand, five hundred one".