1141621601 has 4 divisors (see below), whose sum is σ = 1154448900. Its totient is φ = 1128794304.

The previous prime is 1141621597. The next prime is 1141621651. The reversal of 1141621601 is 1061261411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72658576 + 1068963025 = 8524^2 + 32695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141621601 - 2² = 1141621597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1141621651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413516 + ... + 6413693.

It is an arithmetic number, because the mean of its divisors is an integer number (288612225).

Almost surely, 2^1141621601 is an apocalyptic number.

It is an amenable number.

1141621601 is a deficient number, since it is larger than the sum of its proper divisors (12827299).

1141621601 is an equidigital number, since it uses as much as digits as its factorization.

1141621601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827298.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1141621601 is about 33787.8913369864. The cubic root of 1141621601 is about 1045.1390125119.

The spelling of 1141621601 in words is "one billion, one hundred forty-one million, six hundred twenty-one thousand, six hundred one".