2153715982 has 8 divisors (see below), whose sum is σ = 3524262552. Its totient is φ = 978961800.

The previous prime is 2153715973. The next prime is 2153715983. The reversal of 2153715982 is 2895173512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2153715982² = 9276985062244448648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153715983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48948069 + ... + 48948112.

It is an arithmetic number, because the mean of its divisors is an integer number (440532819).

Almost surely, 2^2153715982 is an apocalyptic number.

2153715982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2153715982 is a deficient number, since it is larger than the sum of its proper divisors (1370546570).

2153715982 is a wasteful number, since it uses less digits than its factorization.

2153715982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97896194.

The product of its digits is 151200, while the sum is 43.

The square root of 2153715982 is about 46408.1456427641. The cubic root of 2153715982 is about 1291.4060309933.

The spelling of 2153715982 in words is "two billion, one hundred fifty-three million, seven hundred fifteen thousand, nine hundred eighty-two".