149544493 has 8 divisors (see below), whose sum is σ = 171039488. Its totient is φ = 128082384.

The previous prime is 149544467. The next prime is 149544523. The reversal of 149544493 is 394445941.

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

It is a cyclic number.

It is not a de Polignac number, because 149544493 - 2¹⁷ = 149413421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149544443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455 + ... + 17467.

It is an arithmetic number, because the mean of its divisors is an integer number (21379936).

Almost surely, 2^149544493 is an apocalyptic number.

It is an amenable number.

149544493 is a deficient number, since it is larger than the sum of its proper divisors (21494995).

149544493 is a wasteful number, since it uses less digits than its factorization.

149544493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443.

The product of its digits is 311040, while the sum is 43.

The square root of 149544493 is about 12228.8385793582. The cubic root of 149544493 is about 530.7909076832.

The spelling of 149544493 in words is "one hundred forty-nine million, five hundred forty-four thousand, four hundred ninety-three".