149770 has 16 divisors (see below), whose sum is σ = 285768. Its totient is φ = 56320.

The previous prime is 149767. The next prime is 149771. The reversal of 149770 is 77941.

It is a Cunningham number, because it is equal to 387²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 116281 + 33489 = 341^2 + 183^2 .

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271 + ... + 610.

2¹⁴⁹⁷⁷⁰ is an apocalyptic number.

149770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149770 is a deficient number, since it is larger than the sum of its proper divisors (135998).

149770 is a wasteful number, since it uses less digits than its factorization.

149770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 149770 is about 387.0012919875. The cubic root of 149770 is about 53.1057577370.

It can be divided in two parts, 149 and 770, that added together give a palindrome (919).

The spelling of 149770 in words is "one hundred forty-nine thousand, seven hundred seventy".