Search a number
-
+
148769 = 314799
BaseRepresentation
bin100100010100100001
321120001222
4210110201
514230034
63104425
71156505
oct442441
9246058
10148769
11a1855
1272115
135293a
143c305
152e12e
hex24521

148769 has 4 divisors (see below), whose sum is σ = 153600. Its totient is φ = 143940.

The previous prime is 148763. The next prime is 148781. The reversal of 148769 is 967841.

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 148769 - 28 = 148513 is a prime.

It is a super-2 number, since 2×1487692 = 44264430722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369 + ... + 2430.

It is an arithmetic number, because the mean of its divisors is an integer number (38400).

2148769 is an apocalyptic number.

It is an amenable number.

148769 is a deficient number, since it is larger than the sum of its proper divisors (4831).

148769 is an equidigital number, since it uses as much as digits as its factorization.

148769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its digits is 12096, while the sum is 35.

The square root of 148769 is about 385.7058464685. The cubic root of 148769 is about 52.9871809510.

The spelling of 148769 in words is "one hundred forty-eight thousand, seven hundred sixty-nine".

Divisors: 1 31 4799 148769