2141898957 has 56 divisors (see below), whose sum is σ = 3598505760. Its totient is φ = 1262861280.

The previous prime is 2141898923. The next prime is 2141898959. The reversal of 2141898957 is 7598981412.

It is a happy number.

It is not a de Polignac number, because 2141898957 - 2⁸ = 2141898701 is a prime.

It is a super-2 number, since 2×2141898957² = 9175462283995375698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141898959) by changing a digit.

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 55 ways as a sum of consecutive naturals, for example, 293094 + ... + 300312.

Almost surely, 2^2141898957 is an apocalyptic number.

2141898957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2141898957 is a deficient number, since it is larger than the sum of its proper divisors (1456606803).

2141898957 is an equidigital number, since it uses as much as digits as its factorization.

2141898957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7270 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 2141898957 is about 46280.6542412702. The cubic root of 2141898957 is about 1289.0397992511.

The spelling of 2141898957 in words is "two billion, one hundred forty-one million, eight hundred ninety-eight thousand, nine hundred fifty-seven".