648153431 has 4 divisors (see below), whose sum is σ = 648209232. Its totient is φ = 648097632.

The previous prime is 648153419. The next prime is 648153433. The reversal of 648153431 is 134351846.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 134351846 = 2 ⋅67175923.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648153431 is a prime.

It is a super-2 number, since 2×648153431² = 840205740234143522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648153391 and 648153400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648153433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170 + ... + 36143.

It is an arithmetic number, because the mean of its divisors is an integer number (162052308).

Almost surely, 2^648153431 is an apocalyptic number.

648153431 is a deficient number, since it is larger than the sum of its proper divisors (55801).

648153431 is a wasteful number, since it uses less digits than its factorization.

648153431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55800.

The product of its digits is 34560, while the sum is 35.

The square root of 648153431 is about 25458.8576138051. The cubic root of 648153431 is about 865.4180348792.

The spelling of 648153431 in words is "six hundred forty-eight million, one hundred fifty-three thousand, four hundred thirty-one".