1493614081 has 4 divisors (see below), whose sum is σ = 1525393152. Its totient is φ = 1461835012.

The previous prime is 1493614037. The next prime is 1493614121. The reversal of 1493614081 is 1804163941.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1804163941 = 499 ⋅3615559.

It is a cyclic number.

It is not a de Polignac number, because 1493614081 - 2²⁵ = 1460059649 is a prime.

It is a super-2 number, since 2×1493614081² = 4461766045922949122, 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 1493614081.

It is not an unprimeable number, because it can be changed into a prime (1493611081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15889465 + ... + 15889558.

It is an arithmetic number, because the mean of its divisors is an integer number (381348288).

Almost surely, 2^1493614081 is an apocalyptic number.

It is an amenable number.

1493614081 is a deficient number, since it is larger than the sum of its proper divisors (31779071).

1493614081 is an equidigital number, since it uses as much as digits as its factorization.

1493614081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31779070.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1493614081 is about 38647.3036705020. The cubic root of 1493614081 is about 1143.0874757353.

The spelling of 1493614081 in words is "one billion, four hundred ninety-three million, six hundred fourteen thousand, eighty-one".