30542669 has 2 divisors, whose sum is σ = 30542670. Its totient is φ = 30542668.

The previous prime is 30542641. The next prime is 30542717. The reversal of 30542669 is 96624503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 8094025 = 4738^2 + 2845^2 .

It is an emirp because it is prime and its reverse (96624503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30542669 is a prime.

It is a super-2 number, since 2×30542669² = 1865709259287122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30542069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15271334 + 15271335.

It is an arithmetic number, because the mean of its divisors is an integer number (15271335).

Almost surely, 2^30542669 is an apocalyptic number.

It is an amenable number.

30542669 is a deficient number, since it is larger than the sum of its proper divisors (1).

30542669 is an equidigital number, since it uses as much as digits as its factorization.

30542669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 30542669 is about 5526.5422281930. The cubic root of 30542669 is about 312.5856200593.

The spelling of 30542669 in words is "thirty million, five hundred forty-two thousand, six hundred sixty-nine".