149263243 has 2 divisors, whose sum is σ = 149263244. Its totient is φ = 149263242.

The previous prime is 149263241. The next prime is 149263249. The reversal of 149263243 is 342362941.

It is a happy number.

149263243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149263243 - 2¹ = 149263241 is a prime.

Together with 149263241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 149263199 and 149263208.

It is not a weakly prime, because it can be changed into another prime (149263241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74631621 + 74631622.

It is an arithmetic number, because the mean of its divisors is an integer number (74631622).

Almost surely, 2^149263243 is an apocalyptic number.

149263243 is a deficient number, since it is larger than the sum of its proper divisors (1).

149263243 is an equidigital number, since it uses as much as digits as its factorization.

149263243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 149263243 is about 12217.3337107570. Note that the first 3 decimals coincide. The cubic root of 149263243 is about 530.4579440616.

The spelling of 149263243 in words is "one hundred forty-nine million, two hundred sixty-three thousand, two hundred forty-three".