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1421361 = 3361863
BaseRepresentation
bin101011011000000110001
32200012202000
411123000301
5330440421
650244213
715036624
oct5330061
92605660
101421361
11890987
12586669
133a9c56
1428ddbb
151d1226
hex15b031

1421361 has 16 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 930960.

The previous prime is 1421351. The next prime is 1421389. The reversal of 1421361 is 1631241.

It is a happy number.

It is not a de Polignac number, because 1421361 - 213 = 1413169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

21421361 is an apocalyptic number.

It is an amenable number.

1421361 is a deficient number, since it is larger than the sum of its proper divisors (721359).

1421361 is an equidigital number, since it uses as much as digits as its factorization.

1421361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 927 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1421361 is about 1192.2084549272. The cubic root of 1421361 is about 112.4349846562.

The spelling of 1421361 in words is "one million, four hundred twenty-one thousand, three hundred sixty-one".

Divisors: 1 3 9 27 61 183 549 863 1647 2589 7767 23301 52643 157929 473787 1421361