30135237 has 16 divisors (see below), whose sum is σ = 46412352. Its totient is φ = 17189120.

The previous prime is 30135229. The next prime is 30135251. The reversal of 30135237 is 73253103.

It is a cyclic number.

It is not a de Polignac number, because 30135237 - 2³ = 30135229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30135227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26298 + ... + 27419.

It is an arithmetic number, because the mean of its divisors is an integer number (2900772).

Almost surely, 2^30135237 is an apocalyptic number.

It is an amenable number.

30135237 is a deficient number, since it is larger than the sum of its proper divisors (16277115).

30135237 is a wasteful number, since it uses less digits than its factorization.

30135237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53748.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 30135237 is about 5489.5570859588. The cubic root of 30135237 is about 311.1894538768.

The spelling of 30135237 in words is "thirty million, one hundred thirty-five thousand, two hundred thirty-seven".