1480087491 has 4 divisors (see below), whose sum is σ = 1973449992. Its totient is φ = 986724992.

The previous prime is 1480087489. The next prime is 1480087501. The reversal of 1480087491 is 1947800841.

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 1480087491 - 2¹ = 1480087489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1480087991) 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, 246681246 + ... + 246681251.

It is an arithmetic number, because the mean of its divisors is an integer number (493362498).

Almost surely, 2^1480087491 is an apocalyptic number.

1480087491 is a deficient number, since it is larger than the sum of its proper divisors (493362501).

1480087491 is an equidigital number, since it uses as much as digits as its factorization.

1480087491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493362500.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1480087491 is about 38471.9052166643. The cubic root of 1480087491 is about 1139.6262987176.

The spelling of 1480087491 in words is "one billion, four hundred eighty million, eighty-seven thousand, four hundred ninety-one".