149451543 has 24 divisors (see below), whose sum is σ = 222243840. Its totient is φ = 96737040.

The previous prime is 149451503. The next prime is 149451557. The reversal of 149451543 is 345154941.

It is a happy number.

149451543 is a `hidden beast` number, since 14 + 94 + 515 + 43 = 666.

149451543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149451543 - 2⁶ = 149451479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149451498 and 149451507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149451503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42378 + ... + 45768.

It is an arithmetic number, because the mean of its divisors is an integer number (9260160).

Almost surely, 2^149451543 is an apocalyptic number.

149451543 is a deficient number, since it is larger than the sum of its proper divisors (72792297).

149451543 is a wasteful number, since it uses less digits than its factorization.

149451543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539 (or 3536 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 149451543 is about 12225.0375459546. The cubic root of 149451543 is about 530.6809131274.

The spelling of 149451543 in words is "one hundred forty-nine million, four hundred fifty-one thousand, five hundred forty-three".