149607493 has 4 divisors (see below), whose sum is σ = 170980000. Its totient is φ = 128234988.

The previous prime is 149607467. The next prime is 149607509. The reversal of 149607493 is 394706941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394706941 = 773 ⋅510617.

It is a de Polignac number, because none of the positive numbers 2^k-149607493 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 (149607413) 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 3 ways as a sum of consecutive naturals, for example, 10686243 + ... + 10686256.

It is an arithmetic number, because the mean of its divisors is an integer number (42745000).

Almost surely, 2^149607493 is an apocalyptic number.

It is an amenable number.

149607493 is a deficient number, since it is larger than the sum of its proper divisors (21372507).

149607493 is an equidigital number, since it uses as much as digits as its factorization.

149607493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372506.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 149607493 is about 12231.4141864300. The cubic root of 149607493 is about 530.8654342935.

The spelling of 149607493 in words is "one hundred forty-nine million, six hundred seven thousand, four hundred ninety-three".