157612226 has 4 divisors (see below), whose sum is σ = 236418342. Its totient is φ = 78806112.

The previous prime is 157612199. The next prime is 157612249. The reversal of 157612226 is 622216751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127351225 + 30261001 = 11285^2 + 5501^2 .

It is a super-2 number, since 2×157612226² = 49683227569350152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157612192 and 157612201.

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 as a sum of consecutive naturals, namely, 39403055 + ... + 39403058.

Almost surely, 2^157612226 is an apocalyptic number.

157612226 is a deficient number, since it is larger than the sum of its proper divisors (78806116).

157612226 is an equidigital number, since it uses as much as digits as its factorization.

157612226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78806115.

The product of its digits is 10080, while the sum is 32.

The square root of 157612226 is about 12554.3707926762. The cubic root of 157612226 is about 540.1693867333.

Adding to 157612226 its reverse (622216751), we get a palindrome (779828977).

The spelling of 157612226 in words is "one hundred fifty-seven million, six hundred twelve thousand, two hundred twenty-six".