30212153 has 2 divisors, whose sum is σ = 30212154. Its totient is φ = 30212152.

The previous prime is 30212131. The next prime is 30212167. The reversal of 30212153 is 35121203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29073664 + 1138489 = 5392^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212153 - 2⁶ = 30212089 is a prime.

It is not a weakly prime, because it can be changed into another prime (30212053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106076 + 15106077.

It is an arithmetic number, because the mean of its divisors is an integer number (15106077).

Almost surely, 2^30212153 is an apocalyptic number.

It is an amenable number.

30212153 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212153 is an equidigital number, since it uses as much as digits as its factorization.

30212153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30212153 is about 5496.5582867827. The cubic root of 30212153 is about 311.4539848741.

Adding to 30212153 its reverse (35121203), we get a palindrome (65333356).

The spelling of 30212153 in words is "thirty million, two hundred twelve thousand, one hundred fifty-three".