149494 has 4 divisors (see below), whose sum is σ = 224244. Its totient is φ = 74746.

The previous prime is 149491. The next prime is 149497. The reversal of 149494 is 494941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494941 = 71 ⋅6971.

It is an interprime number because it is at equal distance from previous prime (149491) and next prime (149497).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37372 + ... + 37375.

It is an arithmetic number, because the mean of its divisors is an integer number (56061).

2¹⁴⁹⁴⁹⁴ is an apocalyptic number.

149494 is a deficient number, since it is larger than the sum of its proper divisors (74750).

149494 is an equidigital number, since it uses as much as digits as its factorization.

149494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74749.

The product of its digits is 5184, while the sum is 31.

The square root of 149494 is about 386.6445395968. The cubic root of 149494 is about 53.0731161268.

The spelling of 149494 in words is "one hundred forty-nine thousand, four hundred ninety-four".