149746 has 4 divisors (see below), whose sum is σ = 224622. Its totient is φ = 74872.

The previous prime is 149731. The next prime is 149749. The reversal of 149746 is 647941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 1521 = 385^2 + 39^2 .

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 not an unprimeable number, because it can be changed into a prime (149749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37435 + ... + 37438.

2¹⁴⁹⁷⁴⁶ is an apocalyptic number.

149746 is a deficient number, since it is larger than the sum of its proper divisors (74876).

149746 is an equidigital number, since it uses as much as digits as its factorization.

149746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74875.

The product of its digits is 6048, while the sum is 31.

The square root of 149746 is about 386.9702830968. The cubic root of 149746 is about 53.1029209289.

The spelling of 149746 in words is "one hundred forty-nine thousand, seven hundred forty-six".