1481633731 has 4 divisors (see below), whose sum is σ = 1481853600. Its totient is φ = 1481413864.

The previous prime is 1481633729. The next prime is 1481633743. The reversal of 1481633731 is 1373361841.

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

It is a cyclic number.

It is not a de Polignac number, because 1481633731 - 2¹ = 1481633729 is a prime.

It is a super-2 number, since 2×1481633731² = 4390477025673960722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1481633701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99496 + ... + 113413.

It is an arithmetic number, because the mean of its divisors is an integer number (370463400).

Almost surely, 2^1481633731 is an apocalyptic number.

1481633731 is a deficient number, since it is larger than the sum of its proper divisors (219869).

1481633731 is an equidigital number, since it uses as much as digits as its factorization.

1481633731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219868.

The product of its digits is 36288, while the sum is 37.

The square root of 1481633731 is about 38491.9956744256. The cubic root of 1481633731 is about 1140.0230145656.

The spelling of 1481633731 in words is "one billion, four hundred eighty-one million, six hundred thirty-three thousand, seven hundred thirty-one".