2153711542 has 4 divisors (see below), whose sum is σ = 3230567316. Its totient is φ = 1076855770.

The previous prime is 2153711533. The next prime is 2153711543. The reversal of 2153711542 is 2451173512.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2153711542² = 9276946812288035528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153711543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538427884 + ... + 538427887.

It is an arithmetic number, because the mean of its divisors is an integer number (807641829).

Almost surely, 2^2153711542 is an apocalyptic number.

2153711542 is a deficient number, since it is larger than the sum of its proper divisors (1076855774).

2153711542 is a wasteful number, since it uses less digits than its factorization.

2153711542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076855773.

The product of its digits is 8400, while the sum is 31.

The square root of 2153711542 is about 46408.0978063096. The cubic root of 2153711542 is about 1291.4051435586.

The spelling of 2153711542 in words is "two billion, one hundred fifty-three million, seven hundred eleven thousand, five hundred forty-two".