612549045 has 12 divisors (see below), whose sum is σ = 1061751756. Its totient is φ = 326692800.

The previous prime is 612549043. The next prime is 612549101. The reversal of 612549045 is 540945216.

612549045 is a `hidden beast` number, since 6 + 125 + 490 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 445674321 + 166874724 = 21111^2 + 12918^2 .

It is not a de Polignac number, because 612549045 - 2¹ = 612549043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612549043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6806056 + ... + 6806145.

It is an arithmetic number, because the mean of its divisors is an integer number (88479313).

Almost surely, 2^612549045 is an apocalyptic number.

It is an amenable number.

612549045 is a deficient number, since it is larger than the sum of its proper divisors (449202711).

612549045 is a wasteful number, since it uses less digits than its factorization.

612549045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13612212 (or 13612209 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 612549045 is about 24749.7281803255. The cubic root of 612549045 is about 849.2722929706.

The spelling of 612549045 in words is "six hundred twelve million, five hundred forty-nine thousand, forty-five".