149268893 has 4 divisors (see below), whose sum is σ = 149888508. Its totient is φ = 148649280.

The previous prime is 149268881. The next prime is 149268901. The reversal of 149268893 is 398862941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139169209 + 10099684 = 11797^2 + 3178^2 .

It is a cyclic number.

It is not a de Polignac number, because 149268893 - 2²⁴ = 132491677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149268803) 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, 309446 + ... + 309927.

It is an arithmetic number, because the mean of its divisors is an integer number (37472127).

Almost surely, 2^149268893 is an apocalyptic number.

It is an amenable number.

149268893 is a deficient number, since it is larger than the sum of its proper divisors (619615).

149268893 is an equidigital number, since it uses as much as digits as its factorization.

149268893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619614.

The product of its digits is 746496, while the sum is 50.

The square root of 149268893 is about 12217.5649374169. The cubic root of 149268893 is about 530.4646370457.

The spelling of 149268893 in words is "one hundred forty-nine million, two hundred sixty-eight thousand, eight hundred ninety-three".