1051616647 has 4 divisors (see below), whose sum is σ = 1087879320. Its totient is φ = 1015353976.

The previous prime is 1051616641. The next prime is 1051616669. The reversal of 1051616647 is 7466161501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051616647 - 2³ = 1051616639 is a prime.

It is a super-2 number, since 2×1051616647² = 2211795144495045218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051616641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18131293 + ... + 18131350.

It is an arithmetic number, because the mean of its divisors is an integer number (271969830).

Almost surely, 2^1051616647 is an apocalyptic number.

1051616647 is a deficient number, since it is larger than the sum of its proper divisors (36262673).

1051616647 is an equidigital number, since it uses as much as digits as its factorization.

1051616647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36262672.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1051616647 is about 32428.6393023204. The cubic root of 1051616647 is about 1016.9177255577.

The spelling of 1051616647 in words is "one billion, fifty-one million, six hundred sixteen thousand, six hundred forty-seven".