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1221234134 = 217193186107
BaseRepresentation
bin100100011001010…
…1000110111010110
310011002222010021212
41020302220313112
510000113443014
6321103141422
742156214241
oct11062506726
93132863255
101221234134
1157739a30a
122a0ba4872
1316601a563
14b829a258
157233223e
hex48ca8dd6

1221234134 has 16 divisors (see below), whose sum is σ = 1949667408. Its totient is φ = 571717632.

The previous prime is 1221234107. The next prime is 1221234143. The reversal of 1221234134 is 4314321221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86492 + ... + 99615.

It is an arithmetic number, because the mean of its divisors is an integer number (121854213).

Almost surely, 21221234134 is an apocalyptic number.

1221234134 is a deficient number, since it is larger than the sum of its proper divisors (728433274).

1221234134 is a wasteful number, since it uses less digits than its factorization.

1221234134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186319.

The product of its digits is 1152, while the sum is 23.

The square root of 1221234134 is about 34946.1605044102. The cubic root of 1221234134 is about 1068.8899116947.

Adding to 1221234134 its reverse (4314321221), we get a palindrome (5535555355).

The spelling of 1221234134 in words is "one billion, two hundred twenty-one million, two hundred thirty-four thousand, one hundred thirty-four".

Divisors: 1 2 17 34 193 386 3281 6562 186107 372214 3163819 6327638 35918651 71837302 610617067 1221234134