651225742 has 16 divisors (see below), whose sum is σ = 1009008000. Its totient is φ = 314903520.

The previous prime is 651225739. The next prime is 651225761. The reversal of 651225742 is 247522156.

651225742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 651225698 and 651225707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140884 + ... + 145432.

It is an arithmetic number, because the mean of its divisors is an integer number (63063000).

Almost surely, 2^651225742 is an apocalyptic number.

651225742 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

651225742 is a deficient number, since it is larger than the sum of its proper divisors (357782258).

651225742 is a wasteful number, since it uses less digits than its factorization.

651225742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891.

The product of its digits is 33600, while the sum is 34.

The square root of 651225742 is about 25519.1250241853. The cubic root of 651225742 is about 866.7832688940.

Adding to 651225742 its reverse (247522156), we get a palindrome (898747898).

The spelling of 651225742 in words is "six hundred fifty-one million, two hundred twenty-five thousand, seven hundred forty-two".