157825445 has 8 divisors (see below), whose sum is σ = 189544344. Its totient is φ = 126157824.

The previous prime is 157825439. The next prime is 157825487. The reversal of 157825445 is 544528751.

It can be written as a sum of positive squares in 4 ways, for example, as 121837444 + 35988001 = 11038^2 + 5999^2 .

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 157825445 - 2⁴ = 157825429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5684 + ... + 18653.

It is an arithmetic number, because the mean of its divisors is an integer number (23693043).

Almost surely, 2^157825445 is an apocalyptic number.

It is an amenable number.

157825445 is a deficient number, since it is larger than the sum of its proper divisors (31718899).

157825445 is a wasteful number, since it uses less digits than its factorization.

157825445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25639.

The product of its digits is 224000, while the sum is 41.

The square root of 157825445 is about 12562.8597460928. The cubic root of 157825445 is about 540.4128587070.

The spelling of 157825445 in words is "one hundred fifty-seven million, eight hundred twenty-five thousand, four hundred forty-five".