1141621597 has 2 divisors, whose sum is σ = 1141621598. Its totient is φ = 1141621596.

The previous prime is 1141621573. The next prime is 1141621651. The reversal of 1141621597 is 7951261411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978063076 + 163558521 = 31274^2 + 12789^2 .

It is an emirp because it is prime and its reverse (7951261411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141621597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141621697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570810798 + 570810799.

It is an arithmetic number, because the mean of its divisors is an integer number (570810799).

Almost surely, 2^1141621597 is an apocalyptic number.

It is an amenable number.

1141621597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141621597 is an equidigital number, since it uses as much as digits as its factorization.

1141621597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 37.

The square root of 1141621597 is about 33787.8912777936. The cubic root of 1141621597 is about 1045.1390112913.

The spelling of 1141621597 in words is "one billion, one hundred forty-one million, six hundred twenty-one thousand, five hundred ninety-seven".