2155030373 has 2 divisors, whose sum is σ = 2155030374. Its totient is φ = 2155030372.

The previous prime is 2155030363. The next prime is 2155030433. The reversal of 2155030373 is 3730305512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2090501284 + 64529089 = 45722^2 + 8033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2155030373 - 2⁴ = 2155030357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155030363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077515186 + 1077515187.

It is an arithmetic number, because the mean of its divisors is an integer number (1077515187).

Almost surely, 2^2155030373 is an apocalyptic number.

It is an amenable number.

2155030373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155030373 is an equidigital number, since it uses as much as digits as its factorization.

2155030373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 2155030373 is about 46422.3046928952. The cubic root of 2155030373 is about 1291.6686882318.

Adding to 2155030373 its reverse (3730305512), we get a palindrome (5885335885).

The spelling of 2155030373 in words is "two billion, one hundred fifty-five million, thirty thousand, three hundred seventy-three".