51123045 has 8 divisors (see below), whose sum is σ = 81796896. Its totient is φ = 27265616.

The previous prime is 51123041. The next prime is 51123047. The reversal of 51123045 is 54032115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51123045 - 2² = 51123041 is a prime.

It is a super-2 number, since 2×51123045² = 5227131460144050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51123041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704087 + ... + 1704116.

It is an arithmetic number, because the mean of its divisors is an integer number (10224612).

Almost surely, 2^51123045 is an apocalyptic number.

It is an amenable number.

51123045 is a deficient number, since it is larger than the sum of its proper divisors (30673851).

51123045 is a wasteful number, since it uses less digits than its factorization.

51123045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408211.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51123045 is about 7150.0381117865. The cubic root of 51123045 is about 371.1409751393.

The spelling of 51123045 in words is "fifty-one million, one hundred twenty-three thousand, forty-five".