1301666325 has 12 divisors (see below), whose sum is σ = 2152088448. Its totient is φ = 694222000.

The previous prime is 1301666321. The next prime is 1301666339. The reversal of 1301666325 is 5236661031.

It is not a de Polignac number, because 1301666325 - 2² = 1301666321 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301666321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8677701 + ... + 8677850.

It is an arithmetic number, because the mean of its divisors is an integer number (179340704).

Almost surely, 2^1301666325 is an apocalyptic number.

1301666325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301666325 is a deficient number, since it is larger than the sum of its proper divisors (850422123).

1301666325 is a wasteful number, since it uses less digits than its factorization.

1301666325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17355564 (or 17355559 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1301666325 is about 36078.6131246754. The cubic root of 1301666325 is about 1091.8589955668.

The spelling of 1301666325 in words is "one billion, three hundred one million, six hundred sixty-six thousand, three hundred twenty-five".