149578143 has 48 divisors (see below), whose sum is σ = 244443360. Its totient is φ = 80720640.

The previous prime is 149578141. The next prime is 149578153. The reversal of 149578143 is 341875941.

It is a happy number.

It is not a de Polignac number, because 149578143 - 2¹ = 149578141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149578095 and 149578104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149578141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136305 + ... + 137397.

It is an arithmetic number, because the mean of its divisors is an integer number (5092570).

Almost surely, 2^149578143 is an apocalyptic number.

149578143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149578143 is a deficient number, since it is larger than the sum of its proper divisors (94865217).

149578143 is a wasteful number, since it uses less digits than its factorization.

149578143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1149 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 149578143 is about 12230.2143480807. The cubic root of 149578143 is about 530.8307169604.

The spelling of 149578143 in words is "one hundred forty-nine million, five hundred seventy-eight thousand, one hundred forty-three".