612540501 has 16 divisors (see below), whose sum is σ = 854949888. Its totient is φ = 389617200.

The previous prime is 612540499. The next prime is 612540517. The reversal of 612540501 is 105045216.

It is not a de Polignac number, because 612540501 - 2¹ = 612540499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612540521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39781 + ... + 52986.

It is an arithmetic number, because the mean of its divisors is an integer number (53434368).

Almost surely, 2^612540501 is an apocalyptic number.

It is an amenable number.

612540501 is a deficient number, since it is larger than the sum of its proper divisors (242409387).

612540501 is a wasteful number, since it uses less digits than its factorization.

612540501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92872.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 612540501 is about 24749.5555717673. Note that the first 4 decimals coincide. The cubic root of 612540501 is about 849.2683443255.

Adding to 612540501 its reverse (105045216), we get a palindrome (717585717).

The spelling of 612540501 in words is "six hundred twelve million, five hundred forty thousand, five hundred one".