149982293 has 4 divisors (see below), whose sum is σ = 151127328. Its totient is φ = 148837260.

The previous prime is 149982277. The next prime is 149982319. The reversal of 149982293 is 392289941.

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 149982293 - 2⁴ = 149982277 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 (149982193) 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, 572321 + ... + 572582.

It is an arithmetic number, because the mean of its divisors is an integer number (37781832).

Almost surely, 2^149982293 is an apocalyptic number.

It is an amenable number.

149982293 is a deficient number, since it is larger than the sum of its proper divisors (1145035).

149982293 is a wasteful number, since it uses less digits than its factorization.

149982293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145034.

The product of its digits is 279936, while the sum is 47.

The square root of 149982293 is about 12246.7258073332. The cubic root of 149982293 is about 531.3083765516.

The spelling of 149982293 in words is "one hundred forty-nine million, nine hundred eighty-two thousand, two hundred ninety-three".