361552993 has 2 divisors, whose sum is σ = 361552994. Its totient is φ = 361552992.

The previous prime is 361552973. The next prime is 361553009. The reversal of 361552993 is 399255163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279324369 + 82228624 = 16713^2 + 9068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361552993 is a prime.

It is not a weakly prime, because it can be changed into another prime (361552903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180776496 + 180776497.

It is an arithmetic number, because the mean of its divisors is an integer number (180776497).

Almost surely, 2^361552993 is an apocalyptic number.

It is an amenable number.

361552993 is a deficient number, since it is larger than the sum of its proper divisors (1).

361552993 is an equidigital number, since it uses as much as digits as its factorization.

361552993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 43.

The square root of 361552993 is about 19014.5468786400. The cubic root of 361552993 is about 712.4001250383.

The spelling of 361552993 in words is "three hundred sixty-one million, five hundred fifty-two thousand, nine hundred ninety-three".