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1297901 = 11117991
BaseRepresentation
bin100111100110111101101
32102221101102
410330313231
5313013101
643452445
714013653
oct4746755
92387342
101297901
11807150
12527125
133659b7
1425add3
151a986b
hex13cded

1297901 has 4 divisors (see below), whose sum is σ = 1415904. Its totient is φ = 1179900.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297901 is 1097921.

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 1297901 - 210 = 1296877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297001) 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, 58985 + ... + 59006.

It is an arithmetic number, because the mean of its divisors is an integer number (353976).

21297901 is an apocalyptic number.

1297901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1297901 is a deficient number, since it is larger than the sum of its proper divisors (118003).

1297901 is a wasteful number, since it uses less digits than its factorization.

1297901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118002.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1297901 is about 1139.2545808554. The cubic root of 1297901 is about 109.0805173393.

The spelling of 1297901 in words is "one million, two hundred ninety-seven thousand, nine hundred one".

Divisors: 1 11 117991 1297901