30546157 has 2 divisors, whose sum is σ = 30546158. Its totient is φ = 30546156.

The previous prime is 30546143. The next prime is 30546169. The reversal of 30546157 is 75164503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30261001 + 285156 = 5501^2 + 534^2 .

It is a cyclic number.

It is not a de Polignac number, because 30546157 - 2²³ = 22157549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30546457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15273078 + 15273079.

It is an arithmetic number, because the mean of its divisors is an integer number (15273079).

Almost surely, 2^30546157 is an apocalyptic number.

It is an amenable number.

30546157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30546157 is an equidigital number, since it uses as much as digits as its factorization.

30546157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 30546157 is about 5526.8577872060. The cubic root of 30546157 is about 312.5975187918.

It can be divided in two parts, 30546 and 157, that added together give a palindrome (30703).

The spelling of 30546157 in words is "thirty million, five hundred forty-six thousand, one hundred fifty-seven".