1468090257 has 4 divisors (see below), whose sum is σ = 1957453680. Its totient is φ = 978726836.

The previous prime is 1468090249. The next prime is 1468090289. The reversal of 1468090257 is 7520908641.

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.

It is a cyclic number.

It is not a de Polignac number, because 1468090257 - 2³ = 1468090249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1468090357) 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, 244681707 + ... + 244681712.

It is an arithmetic number, because the mean of its divisors is an integer number (489363420).

Almost surely, 2^1468090257 is an apocalyptic number.

It is an amenable number.

1468090257 is a deficient number, since it is larger than the sum of its proper divisors (489363423).

1468090257 is an equidigital number, since it uses as much as digits as its factorization.

1468090257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489363422.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1468090257 is about 38315.6659474946. The cubic root of 1468090257 is about 1136.5387622592.

Adding to 1468090257 its reverse (7520908641), we get a palindrome (8988998898).

The spelling of 1468090257 in words is "one billion, four hundred sixty-eight million, ninety thousand, two hundred fifty-seven".