157221325273 has 8 divisors (see below), whose sum is σ = 159536796480. Its totient is φ = 154908662160.

The previous prime is 157221325207. The next prime is 157221325291. The reversal of 157221325273 is 372523122751.

157221325273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157221325273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157221325973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589090 + ... + 813307.

It is an arithmetic number, because the mean of its divisors is an integer number (19942099560).

Almost surely, 2^157221325273 is an apocalyptic number.

It is an amenable number.

157221325273 is a deficient number, since it is larger than the sum of its proper divisors (2315471207).

157221325273 is a wasteful number, since it uses less digits than its factorization.

157221325273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404047.

The product of its digits is 176400, while the sum is 40.

The spelling of 157221325273 in words is "one hundred fifty-seven billion, two hundred twenty-one million, three hundred twenty-five thousand, two hundred seventy-three".