2021151562 has 16 divisors (see below), whose sum is σ = 3192171840. Its totient is φ = 957123648.

The previous prime is 2021151551. The next prime is 2021151577. The reversal of 2021151562 is 2651511202.

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, 245883 + ... + 253969.

It is an arithmetic number, because the mean of its divisors is an integer number (199510740).

Almost surely, 2^2021151562 is an apocalyptic number.

2021151562 is a deficient number, since it is larger than the sum of its proper divisors (1171020278).

2021151562 is a wasteful number, since it uses less digits than its factorization.

2021151562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14685.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 2021151562 is about 44957.2192422974. The cubic root of 2021151562 is about 1264.3470333279.

Adding to 2021151562 its reverse (2651511202), we get a palindrome (4672662764).

The spelling of 2021151562 in words is "two billion, twenty-one million, one hundred fifty-one thousand, five hundred sixty-two".