65149291 has 4 divisors (see below), whose sum is σ = 65216952. Its totient is φ = 65081632.

The previous prime is 65149277. The next prime is 65149297. The reversal of 65149291 is 19294156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65149291 - 2⁷ = 65149163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65149291.

It is not an unprimeable number, because it can be changed into a prime (65149297) 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, 32365 + ... + 34318.

It is an arithmetic number, because the mean of its divisors is an integer number (16304238).

Almost surely, 2^65149291 is an apocalyptic number.

65149291 is a deficient number, since it is larger than the sum of its proper divisors (67661).

65149291 is an equidigital number, since it uses as much as digits as its factorization.

65149291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67660.

The product of its digits is 19440, while the sum is 37.

The square root of 65149291 is about 8071.5110729033. The cubic root of 65149291 is about 402.3801651923.

The spelling of 65149291 in words is "sixty-five million, one hundred forty-nine thousand, two hundred ninety-one".