157201444 has 9 divisors (see below), whose sum is σ = 275146417. Its totient is φ = 78588184.

The previous prime is 157201399. The next prime is 157201463. The reversal of 157201444 is 444102751.

The square root of 157201444 is 12538.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49871844 + 107329600 = 7062^2 + 10360^2 .

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 21942 + ... + 28210.

Almost surely, 2^157201444 is an apocalyptic number.

157201444 is the 12538-th square number.

It is an amenable number.

157201444 is a deficient number, since it is larger than the sum of its proper divisors (117944973).

157201444 is an frugal number, since it uses more digits than its factorization.

157201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542 (or 6271 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The cubic root of 157201444 is about 539.6997004295.

It can be divided in two parts, 157 and 201444, that added together give a square (201601 = 449²).

The spelling of 157201444 in words is "one hundred fifty-seven million, two hundred one thousand, four hundred forty-four".