30138134 has 16 divisors (see below), whose sum is σ = 50364720. Its totient is φ = 13429920.

The previous prime is 30138131. The next prime is 30138137. The reversal of 30138134 is 43183103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30138131) and next prime (30138137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30138131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19232 + ... + 20739.

It is an arithmetic number, because the mean of its divisors is an integer number (3147795).

Almost surely, 2^30138134 is an apocalyptic number.

30138134 is a deficient number, since it is larger than the sum of its proper divisors (20226586).

30138134 is a wasteful number, since it uses less digits than its factorization.

30138134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40015.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30138134 is about 5489.8209442567. The cubic root of 30138134 is about 311.1994254477.

The spelling of 30138134 in words is "thirty million, one hundred thirty-eight thousand, one hundred thirty-four".