30551141 has 2 divisors, whose sum is σ = 30551142. Its totient is φ = 30551140.

The previous prime is 30551051. The next prime is 30551149. The reversal of 30551141 is 14115503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16638241 + 13912900 = 4079^2 + 3730^2 .

It is an emirp because it is prime and its reverse (14115503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30551141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30551149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15275570 + 15275571.

It is an arithmetic number, because the mean of its divisors is an integer number (15275571).

Almost surely, 2^30551141 is an apocalyptic number.

It is an amenable number.

30551141 is a deficient number, since it is larger than the sum of its proper divisors (1).

30551141 is an equidigital number, since it uses as much as digits as its factorization.

30551141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 30551141 is about 5527.3086579275. The cubic root of 30551141 is about 312.6145193079.

Adding to 30551141 its reverse (14115503), we get a palindrome (44666644).

The spelling of 30551141 in words is "thirty million, five hundred fifty-one thousand, one hundred forty-one".