540212152511 has 4 divisors (see below), whose sum is σ = 558840157800. Its totient is φ = 521584147224.

The previous prime is 540212152481. The next prime is 540212152591. The reversal of 540212152511 is 115251212045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115251212045 = 5 ⋅23050242409.

It is a cyclic number.

It is not a de Polignac number, because 540212152511 - 2¹⁴ = 540212136127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 18628005259 = 540212152511 / (5 + 4 + 0 + 2 + 1 + 2 + 1 + 5 + 2 + 5 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540212152591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9314002601 + ... + 9314002658.

It is an arithmetic number, because the mean of its divisors is an integer number (139710039450).

Almost surely, 2^540212152511 is an apocalyptic number.

540212152511 is a deficient number, since it is larger than the sum of its proper divisors (18628005289).

540212152511 is a wasteful number, since it uses less digits than its factorization.

540212152511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18628005288.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 540212152511 its reverse (115251212045), we get a palindrome (655463364556).

The spelling of 540212152511 in words is "five hundred forty billion, two hundred twelve million, one hundred fifty-two thousand, five hundred eleven".