234878149 has 4 divisors (see below), whose sum is σ = 256230720. Its totient is φ = 213525580.

The previous prime is 234878113. The next prime is 234878167. The reversal of 234878149 is 941878432.

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.

It is a cyclic number.

It is not a de Polignac number, because 234878149 - 2¹⁵ = 234845381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234878099 and 234878108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234878179) 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, 10676269 + ... + 10676290.

It is an arithmetic number, because the mean of its divisors is an integer number (64057680).

Almost surely, 2^234878149 is an apocalyptic number.

It is an amenable number.

234878149 is a deficient number, since it is larger than the sum of its proper divisors (21352571).

234878149 is a wasteful number, since it uses less digits than its factorization.

234878149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352570.

The product of its digits is 387072, while the sum is 46.

The square root of 234878149 is about 15325.7348600320. The cubic root of 234878149 is about 616.9939022239.

The spelling of 234878149 in words is "two hundred thirty-four million, eight hundred seventy-eight thousand, one hundred forty-nine".