30134903 has 4 divisors (see below), whose sum is σ = 30411480. Its totient is φ = 29858328.

The previous prime is 30134891. The next prime is 30134917. The reversal of 30134903 is 30943103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30943103 = 4651 ⋅6653.

It is a cyclic number.

It is not a de Polignac number, because 30134903 - 2⁸ = 30134647 is a prime.

It is a super-2 number, since 2×30134903² = 1816224757638818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30134933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138125 + ... + 138342.

It is an arithmetic number, because the mean of its divisors is an integer number (7602870).

Almost surely, 2^30134903 is an apocalyptic number.

30134903 is a deficient number, since it is larger than the sum of its proper divisors (276577).

30134903 is a wasteful number, since it uses less digits than its factorization.

30134903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276576.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30134903 is about 5489.5266644766. The cubic root of 30134903 is about 311.1883041965.

The spelling of 30134903 in words is "thirty million, one hundred thirty-four thousand, nine hundred three".