149298143 has 8 divisors (see below), whose sum is σ = 159820800. Its totient is φ = 139042008.

The previous prime is 149298113. The next prime is 149298157. The reversal of 149298143 is 341892941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149298143 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149298143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149298103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65471 + ... + 67712.

It is an arithmetic number, because the mean of its divisors is an integer number (19977600).

Almost surely, 2^149298143 is an apocalyptic number.

149298143 is a deficient number, since it is larger than the sum of its proper divisors (10522657).

149298143 is a wasteful number, since it uses less digits than its factorization.

149298143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133261.

The product of its digits is 62208, while the sum is 41.

The square root of 149298143 is about 12218.7619258254. The cubic root of 149298143 is about 530.4992838654.

The spelling of 149298143 in words is "one hundred forty-nine million, two hundred ninety-eight thousand, one hundred forty-three".