2831240145 has 8 divisors (see below), whose sum is σ = 4529984256. Its totient is φ = 1509994736.

The previous prime is 2831240123. The next prime is 2831240201. The reversal of 2831240145 is 5410421382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2831240145 - 2⁷ = 2831240017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94374657 + ... + 94374686.

It is an arithmetic number, because the mean of its divisors is an integer number (566248032).

Almost surely, 2^2831240145 is an apocalyptic number.

It is an amenable number.

2831240145 is a deficient number, since it is larger than the sum of its proper divisors (1698744111).

2831240145 is a wasteful number, since it uses less digits than its factorization.

2831240145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188749351.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2831240145 is about 53209.3990287430. The cubic root of 2831240145 is about 1414.6822437403.

The spelling of 2831240145 in words is "two billion, eight hundred thirty-one million, two hundred forty thousand, one hundred forty-five".