2021015492 has 6 divisors (see below), whose sum is σ = 3536777118. Its totient is φ = 1010507744.

The previous prime is 2021015489. The next prime is 2021015527. The reversal of 2021015492 is 2945101202.

It can be written as a sum of positive squares in only one way, i.e., 2017267396 + 3748096 = 44914^2 + 1936^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252626933 + ... + 252626940.

It is an arithmetic number, because the mean of its divisors is an integer number (589462853).

Almost surely, 2^2021015492 is an apocalyptic number.

It is an amenable number.

2021015492 is a deficient number, since it is larger than the sum of its proper divisors (1515761626).

2021015492 is a wasteful number, since it uses less digits than its factorization.

2021015492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505253877 (or 505253875 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2021015492 is about 44955.7058892417. The cubic root of 2021015492 is about 1264.3186594766.

Adding to 2021015492 its reverse (2945101202), we get a palindrome (4966116694).

The spelling of 2021015492 in words is "two billion, twenty-one million, fifteen thousand, four hundred ninety-two".