1022245155 has 12 divisors (see below), whose sum is σ = 1771891680. Its totient is φ = 545197392.

The previous prime is 1022245129. The next prime is 1022245177. The reversal of 1022245155 is 5515422201.

It is a de Polignac number, because none of the positive numbers 2^k-1022245155 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11358235 + ... + 11358324.

It is an arithmetic number, because the mean of its divisors is an integer number (147657640).

Almost surely, 2^1022245155 is an apocalyptic number.

1022245155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1022245155 is a deficient number, since it is larger than the sum of its proper divisors (749646525).

1022245155 is a wasteful number, since it uses less digits than its factorization.

1022245155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22716570 (or 22716567 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1022245155 is about 31972.5687895108. The cubic root of 1022245155 is about 1007.3607382628.

Adding to 1022245155 its reverse (5515422201), we get a palindrome (6537667356).

The spelling of 1022245155 in words is "one billion, twenty-two million, two hundred forty-five thousand, one hundred fifty-five".