648254294 has 4 divisors (see below), whose sum is σ = 972381444. Its totient is φ = 324127146.

The previous prime is 648254291. The next prime is 648254297. The reversal of 648254294 is 492452846.

It is a happy number.

648254294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 492452846 = 2 ⋅246226423.

It is an interprime number because it is at equal distance from previous prime (648254291) and next prime (648254297).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648254291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162063572 + ... + 162063575.

It is an arithmetic number, because the mean of its divisors is an integer number (243095361).

Almost surely, 2^648254294 is an apocalyptic number.

648254294 is a deficient number, since it is larger than the sum of its proper divisors (324127150).

648254294 is a wasteful number, since it uses less digits than its factorization.

648254294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324127149.

The product of its digits is 552960, while the sum is 44.

The square root of 648254294 is about 25460.8384386689. The cubic root of 648254294 is about 865.4629234954.

The spelling of 648254294 in words is "six hundred forty-eight million, two hundred fifty-four thousand, two hundred ninety-four".