2021452154 has 16 divisors (see below), whose sum is σ = 3214588416. Its totient is φ = 951685200.

The previous prime is 2021452127. The next prime is 2021452177. The reversal of 2021452154 is 4512541202.

It is a super-2 number, since 2×2021452154² = 8172537621822479432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438302 + ... + 442889.

It is an arithmetic number, because the mean of its divisors is an integer number (200911776).

Almost surely, 2^2021452154 is an apocalyptic number.

2021452154 is a deficient number, since it is larger than the sum of its proper divisors (1193136262).

2021452154 is a wasteful number, since it uses less digits than its factorization.

2021452154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881261.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2021452154 is about 44960.5622073390. The cubic root of 2021452154 is about 1264.4097094398.

Adding to 2021452154 its reverse (4512541202), we get a palindrome (6533993356).

The spelling of 2021452154 in words is "two billion, twenty-one million, four hundred fifty-two thousand, one hundred fifty-four".