920140145 has 16 divisors (see below), whose sum is σ = 1122071808. Its totient is φ = 724204800.

The previous prime is 920140141. The next prime is 920140153. The reversal of 920140145 is 541041029.

It is not a de Polignac number, because 920140145 - 2² = 920140141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920140141) 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, 401192 + ... + 403478.

It is an arithmetic number, because the mean of its divisors is an integer number (70129488).

Almost surely, 2^920140145 is an apocalyptic number.

It is an amenable number.

920140145 is a deficient number, since it is larger than the sum of its proper divisors (201931663).

920140145 is a wasteful number, since it uses less digits than its factorization.

920140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

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

The square root of 920140145 is about 30333.8119101441. The cubic root of 920140145 is about 972.6382090234.

The spelling of 920140145 in words is "nine hundred twenty million, one hundred forty thousand, one hundred forty-five".