149701 has 4 divisors (see below), whose sum is σ = 157600. Its totient is φ = 141804.

The previous prime is 149689. The next prime is 149711. The reversal of 149701 is 107941.

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.

It is a cyclic number.

It is not a de Polignac number, because 149701 - 2¹³ = 141509 is a prime.

It is a Duffinian number.

149701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149711) 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 in 3 ways as a sum of consecutive naturals, for example, 3921 + ... + 3958.

It is an arithmetic number, because the mean of its divisors is an integer number (39400).

2¹⁴⁹⁷⁰¹ is an apocalyptic number.

It is an amenable number.

149701 is a deficient number, since it is larger than the sum of its proper divisors (7899).

149701 is an equidigital number, since it uses as much as digits as its factorization.

149701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 149701 is about 386.9121347283. The cubic root of 149701 is about 53.0976010965.

The spelling of 149701 in words is "one hundred forty-nine thousand, seven hundred one".