814740901 has 4 divisors (see below), whose sum is σ = 877413292. Its totient is φ = 752068512.

The previous prime is 814740887. The next prime is 814740947. The reversal of 814740901 is 109047418.

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

It can be written as a sum of positive squares in 2 ways, for example, as 501804801 + 312936100 = 22401^2 + 17690^2 .

It is not a de Polignac number, because 814740901 - 2²⁹ = 277869989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814740991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31336176 + ... + 31336201.

It is an arithmetic number, because the mean of its divisors is an integer number (219353323).

Almost surely, 2^814740901 is an apocalyptic number.

It is an amenable number.

814740901 is a deficient number, since it is larger than the sum of its proper divisors (62672391).

814740901 is a wasteful number, since it uses less digits than its factorization.

814740901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62672390.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 814740901 is about 28543.6665654572. Note that the first 3 decimals coincide. The cubic root of 814740901 is about 933.9848671713.

The spelling of 814740901 in words is "eight hundred fourteen million, seven hundred forty thousand, nine hundred one".