157445225 has 12 divisors (see below), whose sum is σ = 223122624. Its totient is φ = 107962320.

The previous prime is 157445219. The next prime is 157445237. The reversal of 157445225 is 522544751.

It is not a de Polignac number, because 157445225 - 2¹⁰ = 157444201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 449669 + ... + 450018.

It is an arithmetic number, because the mean of its divisors is an integer number (18593552).

Almost surely, 2^157445225 is an apocalyptic number.

It is an amenable number.

157445225 is a deficient number, since it is larger than the sum of its proper divisors (65677399).

157445225 is an equidigital number, since it uses as much as digits as its factorization.

157445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899704 (or 899699 counting only the distinct ones).

The product of its digits is 56000, while the sum is 35.

The square root of 157445225 is about 12547.7179200044. The cubic root of 157445225 is about 539.9785370985.

Adding to 157445225 its reverse (522544751), we get a palindrome (679989976).

The spelling of 157445225 in words is "one hundred fifty-seven million, four hundred forty-five thousand, two hundred twenty-five".