226128957 has 8 divisors (see below), whose sum is σ = 301999584. Its totient is φ = 150505488.

The previous prime is 226128949. The next prime is 226128967. The reversal of 226128957 is 759821622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226128957 - 2³ = 226128949 is a prime.

It is a super-2 number, since 2×226128957² = 102268610387815698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226128967) by changing a digit.

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, 59643 + ... + 63320.

It is an arithmetic number, because the mean of its divisors is an integer number (37749948).

Almost surely, 2^226128957 is an apocalyptic number.

It is an amenable number.

226128957 is a deficient number, since it is larger than the sum of its proper divisors (75870627).

226128957 is a wasteful number, since it uses less digits than its factorization.

226128957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123579.

The product of its digits is 120960, while the sum is 42.

The square root of 226128957 is about 15037.5848127284. The cubic root of 226128957 is about 609.2357687323.

The spelling of 226128957 in words is "two hundred twenty-six million, one hundred twenty-eight thousand, nine hundred fifty-seven".