149774 has 4 divisors (see below), whose sum is σ = 224664. Its totient is φ = 74886.

The previous prime is 149771. The next prime is 149791. The reversal of 149774 is 477941.

149774 = 192² + 193² + ... + 195².

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

It is a self number, because there is not a number n which added to its sum of digits gives 149774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37442 + ... + 37445.

It is an arithmetic number, because the mean of its divisors is an integer number (56166).

2¹⁴⁹⁷⁷⁴ is an apocalyptic number.

149774 is a deficient number, since it is larger than the sum of its proper divisors (74890).

149774 is an equidigital number, since it uses as much as digits as its factorization.

149774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74889.

The product of its digits is 7056, while the sum is 32.

The square root of 149774 is about 387.0064598944. The cubic root of 149774 is about 53.1062305089.

The spelling of 149774 in words is "one hundred forty-nine thousand, seven hundred seventy-four".