51100147 has 8 divisors (see below), whose sum is σ = 61835616. Its totient is φ = 41223552.

The previous prime is 51100057. The next prime is 51100157. The reversal of 51100147 is 74100115.

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 51100147 - 2⁷ = 51100019 is a prime.

It is a super-2 number, since 2×51100147² = 5222450046843218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51100157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214588 + ... + 214825.

It is an arithmetic number, because the mean of its divisors is an integer number (7729452).

Almost surely, 2^51100147 is an apocalyptic number.

51100147 is a deficient number, since it is larger than the sum of its proper divisors (10735469).

51100147 is a wasteful number, since it uses less digits than its factorization.

51100147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429437.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 51100147 is about 7148.4366822404. The cubic root of 51100147 is about 371.0855555454.

The spelling of 51100147 in words is "fifty-one million, one hundred thousand, one hundred forty-seven".