801553157 has 8 divisors (see below), whose sum is σ = 828781632. Its totient is φ = 774690400.

The previous prime is 801553139. The next prime is 801553199. The reversal of 801553157 is 751355108.

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 801553157 - 2²⁴ = 784775941 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 (801553457) 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, 86969 + ... + 95742.

It is an arithmetic number, because the mean of its divisors is an integer number (103597704).

Almost surely, 2^801553157 is an apocalyptic number.

It is an amenable number.

801553157 is a deficient number, since it is larger than the sum of its proper divisors (27228475).

801553157 is a wasteful number, since it uses less digits than its factorization.

801553157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182859.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 801553157 is about 28311.7141303737. The cubic root of 801553157 is about 928.9181380428.

The spelling of 801553157 in words is "eight hundred one million, five hundred fifty-three thousand, one hundred fifty-seven".