2051143154 has 8 divisors (see below), whose sum is σ = 3084024108. Its totient is φ = 1023135120.

The previous prime is 2051143141. The next prime is 2051143169. The reversal of 2051143154 is 4513411502.

It can be written as a sum of positive squares in 2 ways, for example, as 1128624025 + 922519129 = 33595^2 + 30373^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217177 + ... + 1218860.

Almost surely, 2^2051143154 is an apocalyptic number.

2051143154 is a deficient number, since it is larger than the sum of its proper divisors (1032880954).

2051143154 is a wasteful number, since it uses less digits than its factorization.

2051143154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436460.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2051143154 is about 45289.5479553506. The cubic root of 2051143154 is about 1270.5701769436.

Adding to 2051143154 its reverse (4513411502), we get a palindrome (6564554656).

The spelling of 2051143154 in words is "two billion, fifty-one million, one hundred forty-three thousand, one hundred fifty-four".