648701157 has 8 divisors (see below), whose sum is σ = 931468384. Its totient is φ = 399200688.

The previous prime is 648701149. The next prime is 648701159. The reversal of 648701157 is 751107846.

648701157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 648701157 - 2³ = 648701149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 16633363 = 648701157 / (6 + 4 + 8 + 7 + 0 + 1 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648701159) 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, 8316643 + ... + 8316720.

It is an arithmetic number, because the mean of its divisors is an integer number (116433548).

Almost surely, 2^648701157 is an apocalyptic number.

It is an amenable number.

648701157 is a deficient number, since it is larger than the sum of its proper divisors (282767227).

648701157 is a wasteful number, since it uses less digits than its factorization.

648701157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633379.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 648701157 is about 25469.6124234351. The cubic root of 648701157 is about 865.6617418352.

The spelling of 648701157 in words is "six hundred forty-eight million, seven hundred one thousand, one hundred fifty-seven".