1228545245 has 8 divisors (see below), whose sum is σ = 1484861280. Its totient is φ = 975764880.

The previous prime is 1228545223. The next prime is 1228545287. The reversal of 1228545245 is 5425458221.

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

It is not a de Polignac number, because 1228545245 - 2¹⁰ = 1228544221 is a prime.

It is a super-2 number, since 2×1228545245² = 3018646838024220050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1228545199 and 1228545208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883151 + ... + 884540.

It is an arithmetic number, because the mean of its divisors is an integer number (185607660).

Almost surely, 2^1228545245 is an apocalyptic number.

It is an amenable number.

1228545245 is a deficient number, since it is larger than the sum of its proper divisors (256316035).

1228545245 is a wasteful number, since it uses less digits than its factorization.

1228545245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767835.

The product of its digits is 128000, while the sum is 38.

The square root of 1228545245 is about 35050.6097664506. The cubic root of 1228545245 is about 1071.0186953146.

The spelling of 1228545245 in words is "one billion, two hundred twenty-eight million, five hundred forty-five thousand, two hundred forty-five".