2153542077 has 6 divisors (see below), whose sum is σ = 3110671902. Its totient is φ = 1435694712.

The previous prime is 2153542063. The next prime is 2153542081. The reversal of 2153542077 is 7702453512.

2153542077 is a `hidden beast` number, since 215 + 354 + 20 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2151939321 + 1602756 = 46389^2 + 1266^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2153542077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153542087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119641218 + ... + 119641235.

It is an arithmetic number, because the mean of its divisors is an integer number (518445317).

Almost surely, 2^2153542077 is an apocalyptic number.

It is an amenable number.

2153542077 is a deficient number, since it is larger than the sum of its proper divisors (957129825).

2153542077 is a wasteful number, since it uses less digits than its factorization.

2153542077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239282459 (or 239282456 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 2153542077 is about 46406.2719575706. The cubic root of 2153542077 is about 1291.3712712242.

Adding to 2153542077 its reverse (7702453512), we get a palindrome (9855995589).

The spelling of 2153542077 in words is "two billion, one hundred fifty-three million, five hundred forty-two thousand, seventy-seven".