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149677 = 1121237
BaseRepresentation
bin100100100010101101
321121022121
4210202231
514242202
63112541
71162243
oct444255
9247277
10149677
11a2500
1272751
1353188
143c793
152e537
hex248ad

149677 has 6 divisors (see below), whose sum is σ = 164654. Its totient is φ = 135960.

The previous prime is 149629. The next prime is 149689. The reversal of 149677 is 776941.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 9801 = 374^2 + 99^2 .

It is not a de Polignac number, because 149677 - 211 = 147629 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 498 + ... + 739.

2149677 is an apocalyptic number.

It is an amenable number.

149677 is a deficient number, since it is larger than the sum of its proper divisors (14977).

149677 is a wasteful number, since it uses less digits than its factorization.

149677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1248 counting only the distinct ones).

The product of its digits is 10584, while the sum is 34.

The square root of 149677 is about 386.8811186915. The cubic root of 149677 is about 53.0947634167.

Subtracting 149677 from its reverse (776941), we obtain a square (627264 = 7922).

The spelling of 149677 in words is "one hundred forty-nine thousand, six hundred seventy-seven".

Divisors: 1 11 121 1237 13607 149677