149489493 has 8 divisors (see below), whose sum is σ = 199912128. Its totient is φ = 99363264.

The previous prime is 149489477. The next prime is 149489507. The reversal of 149489493 is 394984941.

It is a happy number.

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

It is not a de Polignac number, because 149489493 - 2⁴ = 149489477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149489453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72921 + ... + 74942.

It is an arithmetic number, because the mean of its divisors is an integer number (24989016).

Almost surely, 2^149489493 is an apocalyptic number.

It is an amenable number.

149489493 is a deficient number, since it is larger than the sum of its proper divisors (50422635).

149489493 is a wasteful number, since it uses less digits than its factorization.

149489493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148203.

The product of its digits is 1119744, while the sum is 51.

The square root of 149489493 is about 12226.5895899061. The cubic root of 149489493 is about 530.7258276547.

The spelling of 149489493 in words is "one hundred forty-nine million, four hundred eighty-nine thousand, four hundred ninety-three".