611226545 has 4 divisors (see below), whose sum is σ = 733471860. Its totient is φ = 488981232.

The previous prime is 611226509. The next prime is 611226559. The reversal of 611226545 is 545622116.

611226545 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113401201 + 497825344 = 10649^2 + 22312^2 .

It is a cyclic number.

It is not a de Polignac number, because 611226545 - 2¹⁴ = 611210161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61122650 + ... + 61122659.

It is an arithmetic number, because the mean of its divisors is an integer number (183367965).

Almost surely, 2^611226545 is an apocalyptic number.

It is an amenable number.

611226545 is a deficient number, since it is larger than the sum of its proper divisors (122245315).

611226545 is a wasteful number, since it uses less digits than its factorization.

611226545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122245314.

The product of its digits is 14400, while the sum is 32.

The square root of 611226545 is about 24722.9962787685. The cubic root of 611226545 is about 848.6606565668.

The spelling of 611226545 in words is "six hundred eleven million, two hundred twenty-six thousand, five hundred forty-five".