651201026 has 32 divisors (see below), whose sum is σ = 1134736128. Its totient is φ = 274510080.

The previous prime is 651201017. The next prime is 651201043. The reversal of 651201026 is 620102156.

It is a junction number, because it is equal to n+sod(n) for n = 651200992 and 651201010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531851 + ... + 533073.

It is an arithmetic number, because the mean of its divisors is an integer number (35460504).

Almost surely, 2^651201026 is an apocalyptic number.

651201026 is a deficient number, since it is larger than the sum of its proper divisors (483535102).

651201026 is a wasteful number, since it uses less digits than its factorization.

651201026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 651201026 is about 25518.6407553380. The cubic root of 651201026 is about 866.7723030671.

The spelling of 651201026 in words is "six hundred fifty-one million, two hundred one thousand, twenty-six".