1201641425 has 12 divisors (see below), whose sum is σ = 1491011340. Its totient is φ = 960683520.

The previous prime is 1201641409. The next prime is 1201641451. The reversal of 1201641425 is 5241461021.

It can be written as a sum of positive squares in 6 ways, for example, as 246584209 + 955057216 = 15703^2 + 30904^2 .

It is not a de Polignac number, because 1201641425 - 2⁴ = 1201641409 is a prime.

It is a super-2 number, since 2×1201641425² = 2887884228552061250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1201641394 and 1201641403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25289 + ... + 55161.

It is an arithmetic number, because the mean of its divisors is an integer number (124250945).

Almost surely, 2^1201641425 is an apocalyptic number.

It is an amenable number.

1201641425 is a deficient number, since it is larger than the sum of its proper divisors (289369915).

1201641425 is a wasteful number, since it uses less digits than its factorization.

1201641425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31492 (or 31487 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1201641425 is about 34664.6999842780. The cubic root of 1201641425 is about 1063.1428690830.

The spelling of 1201641425 in words is "one billion, two hundred one million, six hundred forty-one thousand, four hundred twenty-five".