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1141431 = 31722381
BaseRepresentation
bin100010110101010110111
32010222202020
410112222313
5243011211
640244223
712462534
oct4265267
92128666
101141431
1170a635
12470673
1330c705
14219d8b
15178306
hex116ab7

1141431 has 8 divisors (see below), whose sum is σ = 1611504. Its totient is φ = 716160.

The previous prime is 1141423. The next prime is 1141447. The reversal of 1141431 is 1341411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1141431 - 23 = 1141423 is a prime.

It is a super-2 number, since 2×11414312 = 2605729455522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1141431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11140 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (201438).

21141431 is an apocalyptic number.

1141431 is a deficient number, since it is larger than the sum of its proper divisors (470073).

1141431 is a wasteful number, since it uses less digits than its factorization.

1141431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22401.

The product of its digits is 48, while the sum is 15.

The square root of 1141431 is about 1068.3777421867. The cubic root of 1141431 is about 104.5080845069.

Adding to 1141431 its reverse (1341411), we get a palindrome (2482842).

The spelling of 1141431 in words is "one million, one hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 3 17 51 22381 67143 380477 1141431