30138077149 has 4 divisors (see below), whose sum is σ = 30587899264. Its totient is φ = 29688255036.

The previous prime is 30138077119. The next prime is 30138077171. The reversal of 30138077149 is 94177083103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94177083103 = 6421 ⋅14667043.

It is a cyclic number.

It is not a de Polignac number, because 30138077149 - 2³³ = 21548142557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30138077119) 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, 224910957 + ... + 224911090.

It is an arithmetic number, because the mean of its divisors is an integer number (7646974816).

Almost surely, 2^30138077149 is an apocalyptic number.

It is an amenable number.

30138077149 is a deficient number, since it is larger than the sum of its proper divisors (449822115).

30138077149 is an equidigital number, since it uses as much as digits as its factorization.

30138077149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449822114.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 30138077149 in words is "thirty billion, one hundred thirty-eight million, seventy-seven thousand, one hundred forty-nine".