30892149 has 12 divisors (see below), whose sum is σ = 44858112. Its totient is φ = 20485800.

The previous prime is 30892133. The next prime is 30892153. The reversal of 30892149 is 94129803.

It is not a de Polignac number, because 30892149 - 2⁴ = 30892133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30892109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7267 + ... + 10704.

It is an arithmetic number, because the mean of its divisors is an integer number (3738176).

Almost surely, 2^30892149 is an apocalyptic number.

It is an amenable number.

30892149 is a deficient number, since it is larger than the sum of its proper divisors (13965963).

30892149 is a wasteful number, since it uses less digits than its factorization.

30892149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18168 (or 18165 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 30892149 is about 5558.0706184790. The cubic root of 30892149 is about 313.7733397451.

The spelling of 30892149 in words is "thirty million, eight hundred ninety-two thousand, one hundred forty-nine".