155274226 has 16 divisors (see below), whose sum is σ = 254568960. Its totient is φ = 70712640.

The previous prime is 155274221. The next prime is 155274271. The reversal of 155274226 is 622472551.

It is a super-2 number, since 2×155274226² = 48220170519798152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 155274191 and 155274200.

It is not an unprimeable number, because it can be changed into a prime (155274221) by changing a digit.

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, 72606 + ... + 74713.

It is an arithmetic number, because the mean of its divisors is an integer number (15910560).

Almost surely, 2^155274226 is an apocalyptic number.

155274226 is a deficient number, since it is larger than the sum of its proper divisors (99294734).

155274226 is a wasteful number, since it uses less digits than its factorization.

155274226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147369.

The product of its digits is 33600, while the sum is 34.

The square root of 155274226 is about 12460.9079123473. The cubic root of 155274226 is about 537.4851350495.

The spelling of 155274226 in words is "one hundred fifty-five million, two hundred seventy-four thousand, two hundred twenty-six".