228137435 has 4 divisors (see below), whose sum is σ = 273764928. Its totient is φ = 182509944.

The previous prime is 228137431. The next prime is 228137443. The reversal of 228137435 is 534731822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534731822 = 2 ⋅267365911.

It is a cyclic number.

It is not a de Polignac number, because 228137435 - 2² = 228137431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228137395 and 228137404.

It is not an unprimeable number, because it can be changed into a prime (228137431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22813739 + ... + 22813748.

It is an arithmetic number, because the mean of its divisors is an integer number (68441232).

Almost surely, 2^228137435 is an apocalyptic number.

228137435 is a deficient number, since it is larger than the sum of its proper divisors (45627493).

228137435 is an equidigital number, since it uses as much as digits as its factorization.

228137435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45627492.

The product of its digits is 40320, while the sum is 35.

The square root of 228137435 is about 15104.2191125526. The cubic root of 228137435 is about 611.0341992156.

The spelling of 228137435 in words is "two hundred twenty-eight million, one hundred thirty-seven thousand, four hundred thirty-five".