149318143 has 16 divisors (see below), whose sum is σ = 164094336. Its totient is φ = 135036000.

The previous prime is 149318111. The next prime is 149318149. The reversal of 149318143 is 341813941.

It is a cyclic number.

It is not a de Polignac number, because 149318143 - 2⁵ = 149318111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149318099 and 149318108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149318149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218280 + ... + 218962.

It is an arithmetic number, because the mean of its divisors is an integer number (10255896).

Almost surely, 2^149318143 is an apocalyptic number.

149318143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149318143 is a deficient number, since it is larger than the sum of its proper divisors (14776193).

149318143 is a wasteful number, since it uses less digits than its factorization.

149318143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its digits is 10368, while the sum is 34.

The square root of 149318143 is about 12219.5803119420. The cubic root of 149318143 is about 530.5229713937.

The spelling of 149318143 in words is "one hundred forty-nine million, three hundred eighteen thousand, one hundred forty-three".