1225843027 has 4 divisors (see below), whose sum is σ = 1225916080. Its totient is φ = 1225769976.

The previous prime is 1225843009. The next prime is 1225843033. The reversal of 1225843027 is 7203485221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1225843027 - 2⁷ = 1225842899 is a prime.

It is a super-2 number, since 2×1225843027² = 3005382253689045458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225842983 and 1225843001.

It is not an unprimeable number, because it can be changed into a prime (1225843037) 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, 2653 + ... + 49585.

It is an arithmetic number, because the mean of its divisors is an integer number (306479020).

Almost surely, 2^1225843027 is an apocalyptic number.

1225843027 is a deficient number, since it is larger than the sum of its proper divisors (73053).

1225843027 is an equidigital number, since it uses as much as digits as its factorization.

1225843027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73052.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1225843027 is about 35012.0411715741. The cubic root of 1225843027 is about 1070.2328741689.

The spelling of 1225843027 in words is "one billion, two hundred twenty-five million, eight hundred forty-three thousand, twenty-seven".