920122145 has 16 divisors (see below), whose sum is σ = 1110803520. Its totient is φ = 731674944.

The previous prime is 920122141. The next prime is 920122163. The reversal of 920122145 is 541221029.

It is a cyclic number.

It is not a de Polignac number, because 920122145 - 2² = 920122141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (920122141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070726 + ... + 1071584.

It is an arithmetic number, because the mean of its divisors is an integer number (69425220).

Almost surely, 2^920122145 is an apocalyptic number.

It is an amenable number.

920122145 is a deficient number, since it is larger than the sum of its proper divisors (190681375).

920122145 is a wasteful number, since it uses less digits than its factorization.

920122145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 920122145 is about 30333.5152100774. The cubic root of 920122145 is about 972.6318666555.

The spelling of 920122145 in words is "nine hundred twenty million, one hundred twenty-two thousand, one hundred forty-five".