2005156874 has 8 divisors (see below), whose sum is σ = 3437411808. Its totient is φ = 859352940.

The previous prime is 2005156861. The next prime is 2005156877. The reversal of 2005156874 is 4786515002.

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

It is not an unprimeable number, because it can be changed into a prime (2005156877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71612732 + ... + 71612759.

It is an arithmetic number, because the mean of its divisors is an integer number (429676476).

Almost surely, 2^2005156874 is an apocalyptic number.

2005156874 is a deficient number, since it is larger than the sum of its proper divisors (1432254934).

2005156874 is a wasteful number, since it uses less digits than its factorization.

2005156874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143225500.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2005156874 is about 44778.9780365743. The cubic root of 2005156874 is about 1261.0029962009.

The spelling of 2005156874 in words is "two billion, five million, one hundred fifty-six thousand, eight hundred seventy-four".