30387134 has 4 divisors (see below), whose sum is σ = 45580704. Its totient is φ = 15193566.

The previous prime is 30387131. The next prime is 30387139. The reversal of 30387134 is 43178303.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 30387097 and 30387106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30387131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7596782 + ... + 7596785.

It is an arithmetic number, because the mean of its divisors is an integer number (11395176).

Almost surely, 2^30387134 is an apocalyptic number.

30387134 is a deficient number, since it is larger than the sum of its proper divisors (15193570).

30387134 is a wasteful number, since it uses less digits than its factorization.

30387134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15193569.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30387134 is about 5512.4526301820. The cubic root of 30387134 is about 312.0541148191.

The spelling of 30387134 in words is "thirty million, three hundred eighty-seven thousand, one hundred thirty-four".