155226246 has 64 divisors (see below), whose sum is σ = 367234560. Its totient is φ = 42819840.

The previous prime is 155226229. The next prime is 155226277. The reversal of 155226246 is 642622551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187285 + ... + 188111.

It is an arithmetic number, because the mean of its divisors is an integer number (5738040).

Almost surely, 2^155226246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155226246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183617280).

155226246 is an abundant number, since it is smaller than the sum of its proper divisors (212008314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155226246 is a wasteful number, since it uses less digits than its factorization.

155226246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its digits is 28800, while the sum is 33.

The square root of 155226246 is about 12458.9825427280. The cubic root of 155226246 is about 537.4297680726.

Adding to 155226246 its reverse (642622551), we get a palindrome (797848797).

The spelling of 155226246 in words is "one hundred fifty-five million, two hundred twenty-six thousand, two hundred forty-six".