1493051011 has 4 divisors (see below), whose sum is σ = 1500868224. Its totient is φ = 1485233800.

The previous prime is 1493050987. The next prime is 1493051029. The reversal of 1493051011 is 1101503941.

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 1493051011 - 2⁷ = 1493050883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493051041) 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, 3908320 + ... + 3908701.

It is an arithmetic number, because the mean of its divisors is an integer number (375217056).

Almost surely, 2^1493051011 is an apocalyptic number.

1493051011 is a deficient number, since it is larger than the sum of its proper divisors (7817213).

1493051011 is an equidigital number, since it uses as much as digits as its factorization.

1493051011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817212.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1493051011 is about 38640.0182582773. The cubic root of 1493051011 is about 1142.9438154304.

Adding to 1493051011 its reverse (1101503941), we get a palindrome (2594554952).

The spelling of 1493051011 in words is "one billion, four hundred ninety-three million, fifty-one thousand, eleven".