1468569137 has 4 divisors (see below), whose sum is σ = 1678364736. Its totient is φ = 1258773540.

The previous prime is 1468569133. The next prime is 1468569139. The reversal of 1468569137 is 7319658641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7319658641 = 103 ⋅71064647.

It is a cyclic number.

It is not a de Polignac number, because 1468569137 - 2² = 1468569133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1468569133) 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, 104897789 + ... + 104897802.

It is an arithmetic number, because the mean of its divisors is an integer number (419591184).

Almost surely, 2^1468569137 is an apocalyptic number.

It is an amenable number.

1468569137 is a deficient number, since it is larger than the sum of its proper divisors (209795599).

1468569137 is an equidigital number, since it uses as much as digits as its factorization.

1468569137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209795598.

The product of its digits is 1088640, while the sum is 50.

The square root of 1468569137 is about 38321.9145789977. The cubic root of 1468569137 is about 1136.6623256237.

The spelling of 1468569137 in words is "one billion, four hundred sixty-eight million, five hundred sixty-nine thousand, one hundred thirty-seven".