1491460253 has 2 divisors, whose sum is σ = 1491460254. Its totient is φ = 1491460252.

The previous prime is 1491460237. The next prime is 1491460361. The reversal of 1491460253 is 3520641941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303715449 + 187744804 = 36107^2 + 13702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1491460253 - 2⁴ = 1491460237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1491460213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745730126 + 745730127.

It is an arithmetic number, because the mean of its divisors is an integer number (745730127).

Almost surely, 2^1491460253 is an apocalyptic number.

It is an amenable number.

1491460253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1491460253 is an equidigital number, since it uses as much as digits as its factorization.

1491460253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1491460253 is about 38619.4284395821. The cubic root of 1491460253 is about 1142.5377580583.

The spelling of 1491460253 in words is "one billion, four hundred ninety-one million, four hundred sixty thousand, two hundred fifty-three".