612736542 has 64 divisors (see below), whose sum is σ = 1572825600. Its totient is φ = 174752640.

The previous prime is 612736499. The next prime is 612736547. The reversal of 612736542 is 245637216.

612736542 is a `hidden beast` number, since 61 + 27 + 36 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 612736497 and 612736506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612736547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20242 + ... + 40437.

It is an arithmetic number, because the mean of its divisors is an integer number (24575400).

Almost surely, 2^612736542 is an apocalyptic number.

612736542 is an abundant number, since it is smaller than the sum of its proper divisors (960089058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612736542 is a wasteful number, since it uses less digits than its factorization.

612736542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60718 (or 60712 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 612736542 is about 24753.5157502929. The cubic root of 612736542 is about 849.3589362438.

It can be divided in two parts, 612736 and 542, that added together give a triangular number (613278 = T₁₁₀₇).

The spelling of 612736542 in words is "six hundred twelve million, seven hundred thirty-six thousand, five hundred forty-two".