978151226 has 16 divisors (see below), whose sum is σ = 1605996168. Its totient is φ = 444052800.

The previous prime is 978151123. The next prime is 978151241. The reversal of 978151226 is 622151879.

It can be written as a sum of positive squares in 4 ways, for example, as 327646201 + 650505025 = 18101^2 + 25505^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306785 + ... + 309956.

Almost surely, 2^978151226 is an apocalyptic number.

978151226 is a deficient number, since it is larger than the sum of its proper divisors (627844942).

978151226 is a wasteful number, since it uses less digits than its factorization.

978151226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616817.

The product of its digits is 60480, while the sum is 41.

The square root of 978151226 is about 31275.4092858910. The cubic root of 978151226 is about 992.6633809884.

The spelling of 978151226 in words is "nine hundred seventy-eight million, one hundred fifty-one thousand, two hundred twenty-six".