2001234154 has 4 divisors (see below), whose sum is σ = 3001851234. Its totient is φ = 1000617076.

The previous prime is 2001234139. The next prime is 2001234167. The reversal of 2001234154 is 4514321002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1946133225 + 55100929 = 44115^2 + 7423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500308537 + ... + 500308540.

Almost surely, 2^2001234154 is an apocalyptic number.

2001234154 is a deficient number, since it is larger than the sum of its proper divisors (1000617080).

2001234154 is a wasteful number, since it uses less digits than its factorization.

2001234154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000617079.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2001234154 is about 44735.1556831984. The cubic root of 2001234154 is about 1260.1801527073.

Adding to 2001234154 its reverse (4514321002), we get a palindrome (6515555156).

The spelling of 2001234154 in words is "two billion, one million, two hundred thirty-four thousand, one hundred fifty-four".