157272823 has 8 divisors (see below), whose sum is σ = 168265520. Its totient is φ = 146551680.

The previous prime is 157272821. The next prime is 157272847. The reversal of 157272823 is 328272751.

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 157272823 - 2¹ = 157272821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157272821) 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, 66690 + ... + 69007.

It is an arithmetic number, because the mean of its divisors is an integer number (21033190).

Almost surely, 2^157272823 is an apocalyptic number.

157272823 is a deficient number, since it is larger than the sum of its proper divisors (10992697).

157272823 is a wasteful number, since it uses less digits than its factorization.

157272823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135777.

The product of its digits is 47040, while the sum is 37.

The square root of 157272823 is about 12540.8461835715. The cubic root of 157272823 is about 539.7813735465.

It can be divided in two parts, 1572728 and 23, that added together give a palindrome (1572751).

The spelling of 157272823 in words is "one hundred fifty-seven million, two hundred seventy-two thousand, eight hundred twenty-three".