1493126651 has 4 divisors (see below), whose sum is σ = 1500630000. Its totient is φ = 1485623304.

The previous prime is 1493126641. The next prime is 1493126671. The reversal of 1493126651 is 1566213941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1566213941 = 59 ⋅26545999.

It is a cyclic number.

It is not a de Polignac number, because 1493126651 - 2⁶ = 1493126587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493126641) 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, 3751376 + ... + 3751773.

It is an arithmetic number, because the mean of its divisors is an integer number (375157500).

Almost surely, 2^1493126651 is an apocalyptic number.

1493126651 is a deficient number, since it is larger than the sum of its proper divisors (7503349).

1493126651 is an equidigital number, since it uses as much as digits as its factorization.

1493126651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503348.

The product of its digits is 38880, while the sum is 38.

The square root of 1493126651 is about 38640.9970238864. The cubic root of 1493126651 is about 1142.9631161352.

The spelling of 1493126651 in words is "one billion, four hundred ninety-three million, one hundred twenty-six thousand, six hundred fifty-one".