1494254891 has 2 divisors, whose sum is σ = 1494254892. Its totient is φ = 1494254890.

The previous prime is 1494254857. The next prime is 1494254897. The reversal of 1494254891 is 1984524941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1494254891 - 2²² = 1490060587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1494254897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747127445 + 747127446.

It is an arithmetic number, because the mean of its divisors is an integer number (747127446).

Almost surely, 2^1494254891 is an apocalyptic number.

1494254891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494254891 is an equidigital number, since it uses as much as digits as its factorization.

1494254891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The square root of 1494254891 is about 38655.5932692799. The cubic root of 1494254891 is about 1143.2509265141.

The spelling of 1494254891 in words is "one billion, four hundred ninety-four million, two hundred fifty-four thousand, eight hundred ninety-one".