814150621 has 8 divisors (see below), whose sum is σ = 866511864. Its totient is φ = 762286080.

The previous prime is 814150609. The next prime is 814150633. The reversal of 814150621 is 126051418.

It is an interprime number because it is at equal distance from previous prime (814150609) and next prime (814150633).

It can be written as a sum of positive squares in 4 ways, for example, as 108451396 + 705699225 = 10414^2 + 26565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 814150621 - 2²⁷ = 679932893 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 814150621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814151621) 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 7 ways as a sum of consecutive naturals, for example, 120790 + ... + 127351.

It is an arithmetic number, because the mean of its divisors is an integer number (108313983).

Almost surely, 2^814150621 is an apocalyptic number.

It is an amenable number.

814150621 is a deficient number, since it is larger than the sum of its proper divisors (52361243).

814150621 is a wasteful number, since it uses less digits than its factorization.

814150621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248351.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 814150621 is about 28533.3247449364. The cubic root of 814150621 is about 933.7592552488.

The spelling of 814150621 in words is "eight hundred fourteen million, one hundred fifty thousand, six hundred twenty-one".