3120500145 has 32 divisors (see below), whose sum is σ = 5890129920. Its totient is φ = 1380496320.

The previous prime is 3120500113. The next prime is 3120500167. The reversal of 3120500145 is 5410050213.

It is not a de Polignac number, because 3120500145 - 2⁵ = 3120500113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476085 + ... + 482594.

It is an arithmetic number, because the mean of its divisors is an integer number (184066560).

Almost surely, 2^3120500145 is an apocalyptic number.

3120500145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3120500145 is a deficient number, since it is larger than the sum of its proper divisors (2769629775).

3120500145 is a wasteful number, since it uses less digits than its factorization.

3120500145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958725.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 3120500145 is about 55861.4370115915. The cubic root of 3120500145 is about 1461.3067903668.

Adding to 3120500145 its reverse (5410050213), we get a palindrome (8530550358).

The spelling of 3120500145 in words is "three billion, one hundred twenty million, five hundred thousand, one hundred forty-five".