2021499142 has 16 divisors (see below), whose sum is σ = 3266802000. Its totient is φ = 932627232.

The previous prime is 2021499133. The next prime is 2021499169. The reversal of 2021499142 is 2419941202.

It is a happy number.

It is a super-2 number, since 2×2021499142² = 8172917562213472328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021499098 and 2021499107.

It is a congruent number.

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, 57333 + ... + 85615.

It is an arithmetic number, because the mean of its divisors is an integer number (204175125).

Almost surely, 2^2021499142 is an apocalyptic number.

2021499142 is a deficient number, since it is larger than the sum of its proper divisors (1245302858).

2021499142 is a wasteful number, since it uses less digits than its factorization.

2021499142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31047.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2021499142 is about 44961.0847511490. The cubic root of 2021499142 is about 1264.4195062951.

The spelling of 2021499142 in words is "two billion, twenty-one million, four hundred ninety-nine thousand, one hundred forty-two".